diff --git a/src/scripting_api/aform.js b/src/scripting_api/aform.js
index 3975c5a7c..9ec325328 100644
--- a/src/scripting_api/aform.js
+++ b/src/scripting_api/aform.js
@@ -500,14 +500,18 @@ class AForm {
 
     const event = globalThis.event;
     const values = [];
+
+    cFields = this.AFMakeArrayFromList(cFields);
     for (const cField of cFields) {
       const field = this._document.getField(cField);
       if (!field) {
         continue;
       }
-      const number = this.AFMakeNumber(field.value);
-      if (number !== null) {
-        values.push(number);
+      for (const child of field.getArray()) {
+        const number = this.AFMakeNumber(child.value);
+        if (number !== null) {
+          values.push(number);
+        }
       }
     }
 
diff --git a/src/scripting_api/doc.js b/src/scripting_api/doc.js
index 2f1d05e47..adbc71100 100644
--- a/src/scripting_api/doc.js
+++ b/src/scripting_api/doc.js
@@ -889,6 +889,24 @@ class Doc extends PDFObject {
     return children;
   }
 
+  _getTerminalChildren(fieldName) {
+    // Get all the descendants which have a value.
+    const children = [];
+    const len = fieldName.length;
+    for (const [name, field] of this._fields.entries()) {
+      if (name.startsWith(fieldName)) {
+        const finalPart = name.slice(len);
+        if (
+          field.obj._hasValue &&
+          (finalPart === "" || finalPart.startsWith("."))
+        ) {
+          children.push(field.wrapped);
+        }
+      }
+    }
+    return children;
+  }
+
   getIcon() {
     /* Not implemented */
   }
diff --git a/src/scripting_api/field.js b/src/scripting_api/field.js
index 49dc39450..bdb2add5f 100644
--- a/src/scripting_api/field.js
+++ b/src/scripting_api/field.js
@@ -76,6 +76,7 @@ class Field extends PDFObject {
     this._fillColor = data.fillColor || ["T"];
     this._isChoice = Array.isArray(data.items);
     this._items = data.items || [];
+    this._hasValue = data.hasOwnProperty("value");
     this._page = data.page || 0;
     this._strokeColor = data.strokeColor || ["G", 0];
     this._textColor = data.textColor || ["G", 0];
@@ -393,15 +394,32 @@ class Field extends PDFObject {
   }
 
   getArray() {
+    // Gets the array of terminal child fields (that is, fields that can have
+    // a value for this Field object, the parent field).
     if (this._kidIds) {
-      return this._kidIds.map(id => this._appObjects[id].wrapped);
+      const array = [];
+      const fillArrayWithKids = kidIds => {
+        for (const id of kidIds) {
+          const obj = this._appObjects[id];
+          if (!obj) {
+            continue;
+          }
+          if (obj.obj._hasValue) {
+            array.push(obj.wrapped);
+          }
+          if (obj.obj._kidIds) {
+            fillArrayWithKids(obj.obj._kidIds);
+          }
+        }
+      };
+      fillArrayWithKids(this._kidIds);
+      return array;
     }
 
     if (this._children === null) {
-      this._children = this._document.obj
-        ._getChildren(this._fieldPath)
-        .map(child => child.wrapped);
+      this._children = this._document.obj._getTerminalChildren(this._fieldPath);
     }
+
     return this._children;
   }
 
diff --git a/test/unit/scripting_spec.js b/test/unit/scripting_spec.js
index 08e0ce496..9ae19cf3d 100644
--- a/test/unit/scripting_spec.js
+++ b/test/unit/scripting_spec.js
@@ -200,7 +200,7 @@ describe("Scripting", function () {
       value = await myeval(
         `this.getField("A.B.C.D").getArray().map((x) => x.value)`
       );
-      expect(value).toEqual([5, 7]);
+      expect(value).toEqual([4, 5, 6, 7]);
     });
   });
 
@@ -1037,7 +1037,7 @@ describe("Scripting", function () {
 
     describe("AFSimple_Calculate", function () {
       it("should compute the sum of several fields", async () => {
-        const refIds = [0, 1, 2, 3].map(_ => getId());
+        const refIds = [0, 1, 2, 3, 4].map(_ => getId());
         const data = {
           objects: {
             field1: [
@@ -1076,9 +1076,21 @@ describe("Scripting", function () {
                 type: "text",
               },
             ],
+            field5: [
+              {
+                id: refIds[4],
+                value: "",
+                actions: {
+                  Calculate: [
+                    `AFSimple_Calculate("SUM", "field1, field2, field3, unknown");`,
+                  ],
+                },
+                type: "text",
+              },
+            ],
           },
           appInfo: { language: "en-US", platform: "Linux x86_64" },
-          calculationOrder: [refIds[3]],
+          calculationOrder: [refIds[3], refIds[4]],
           dispatchEventName: "_dispatchMe",
         };
 
@@ -1124,6 +1136,98 @@ describe("Scripting", function () {
           value: 6,
           formattedValue: null,
         });
+
+        expect(send_queue.has(refIds[4])).toEqual(true);
+        expect(send_queue.get(refIds[4])).toEqual({
+          id: refIds[4],
+          siblings: null,
+          value: 6,
+          formattedValue: null,
+        });
+      });
+
+      it("should compute the sum of several fields in fields tree", async () => {
+        const refIds = [0, 1, 2, 3, 4, 5].map(_ => getId());
+        const data = {
+          objects: {
+            field1: [
+              {
+                id: refIds[0],
+                kidIds: [refIds[1], refIds[2]],
+              },
+            ],
+            "field1.field2": [
+              {
+                id: refIds[1],
+                kidIds: [refIds[3]],
+              },
+            ],
+            "field1.field3": [
+              {
+                id: refIds[2],
+                value: "",
+                actions: {},
+                type: "text",
+              },
+            ],
+            "field1.field2.field4": [
+              {
+                id: refIds[3],
+                kidIds: [refIds[4]],
+              },
+            ],
+            "field1.field2.field4.field5": [
+              {
+                id: refIds[4],
+                value: "",
+                actions: {},
+                type: "text",
+              },
+            ],
+            field6: [
+              {
+                id: refIds[5],
+                value: "",
+                actions: {
+                  Calculate: [`AFSimple_Calculate("SUM", "field1");`],
+                },
+                type: "text",
+              },
+            ],
+          },
+          appInfo: { language: "en-US", platform: "Linux x86_64" },
+          calculationOrder: [refIds[5]],
+          dispatchEventName: "_dispatchMe",
+        };
+
+        sandbox.createSandbox(data);
+        await sandbox.dispatchEventInSandbox({
+          id: refIds[2],
+          value: "123",
+          name: "Keystroke",
+          willCommit: true,
+        });
+        expect(send_queue.has(refIds[5])).toEqual(true);
+        expect(send_queue.get(refIds[5])).toEqual({
+          id: refIds[5],
+          siblings: null,
+          value: 123,
+          formattedValue: null,
+        });
+
+        await sandbox.dispatchEventInSandbox({
+          id: refIds[4],
+          value: "456",
+          name: "Keystroke",
+          willCommit: true,
+        });
+        expect(send_queue.has(refIds[5])).toEqual(true);
+        expect(send_queue.get(refIds[5])).toEqual({
+          id: refIds[5],
+          siblings: null,
+          value: 579,
+          formattedValue: null,
+        });
       });
     });