diff --git a/external/builder/babel-plugin-pdfjs-preprocessor.mjs b/external/builder/babel-plugin-pdfjs-preprocessor.mjs
index 8c5254e73..8f8be7a72 100644
--- a/external/builder/babel-plugin-pdfjs-preprocessor.mjs
+++ b/external/builder/babel-plugin-pdfjs-preprocessor.mjs
@@ -184,7 +184,7 @@ function babelPluginPDFJSPreprocessor(babel, ctx) {
           path.replaceWith(t.importExpression(source));
         }
       },
-      BlockStatement: {
+      "BlockStatement|StaticBlock": {
         // Visit node in post-order so that recursive flattening
         // of blocks works correctly.
         exit(path) {
@@ -215,6 +215,10 @@ function babelPluginPDFJSPreprocessor(babel, ctx) {
             }
             subExpressionIndex++;
           }
+
+          if (node.type === "StaticBlock" && node.body.length === 0) {
+            path.remove();
+          }
         },
       },
       Function: {
diff --git a/external/builder/fixtures_babel/staticblock-expected.js b/external/builder/fixtures_babel/staticblock-expected.js
new file mode 100644
index 000000000..7edf5a8d9
--- /dev/null
+++ b/external/builder/fixtures_babel/staticblock-expected.js
@@ -0,0 +1,8 @@
+class A {
+  static {
+    foo();
+  }
+  static {
+    var a = 0;
+  }
+}
diff --git a/external/builder/fixtures_babel/staticblock.js b/external/builder/fixtures_babel/staticblock.js
new file mode 100644
index 000000000..161a5d705
--- /dev/null
+++ b/external/builder/fixtures_babel/staticblock.js
@@ -0,0 +1,20 @@
+class A {
+  static {}
+  static {
+    { foo() }
+  }
+  static {
+    {;}
+  }
+  static {
+    if (PDFJSDev.test('TRUE')) {
+      var a = 0;
+    }
+  }
+
+  static {
+    if (PDFJSDev.test('FALSE')) {
+      var a = 1;
+    }
+  }
+}