diff --git a/codegen/src/main/java/org/web3j/codegen/SolidityFunctionWrapper.java b/codegen/src/main/java/org/web3j/codegen/SolidityFunctionWrapper.java
index d8bb4bc95..16f0524b6 100644
--- a/codegen/src/main/java/org/web3j/codegen/SolidityFunctionWrapper.java
+++ b/codegen/src/main/java/org/web3j/codegen/SolidityFunctionWrapper.java
@@ -395,7 +395,7 @@ private FieldSpec createLibrariesLinkedBinaryField() {
                 .build();
     }
 
-    private FieldSpec createBinaryDefinition(String binary) {
+    FieldSpec createBinaryDefinition(String binary) {
         if (binary.length() < 65534) {
             return FieldSpec.builder(String.class, BINARY)
                     .addModifiers(Modifier.PUBLIC, Modifier.FINAL, Modifier.STATIC)
@@ -407,7 +407,8 @@ private FieldSpec createBinaryDefinition(String binary) {
         StringBuilder stringBuilderString = new StringBuilder().append("new StringBuilder()");
         for (String s : argsArray) {
             stringBuilderString.append(".append(\"");
-            stringBuilderString.append(s);
+            stringBuilderString.append(
+                    s.replaceAll("\\$", "\\$\\$")); // escape $ which bytecode may contain
             stringBuilderString.append("\")");
         }
         stringBuilderString.append(".toString()");
diff --git a/codegen/src/test/java/org/web3j/codegen/SolidityFunctionWrapperTest.java b/codegen/src/test/java/org/web3j/codegen/SolidityFunctionWrapperTest.java
index 8e6f044bd..da7ea382d 100644
--- a/codegen/src/test/java/org/web3j/codegen/SolidityFunctionWrapperTest.java
+++ b/codegen/src/test/java/org/web3j/codegen/SolidityFunctionWrapperTest.java
@@ -983,4 +983,13 @@ public void testBuildFunctionLinkBinaryWithReferences() throws Exception {
 
         assertEquals(methodSpec.toString(), (expected));
     }
+
+    @Test
+    public void testBinaryWithUnlinkedLibraryLengthOver65534() throws Exception {
+        solidityFunctionWrapper.createBinaryDefinition(
+                "0x"
+                        + "a".repeat(40000)
+                        + "__$927c5a12e2f339676f56d42ec1c0537964$__"
+                        + "a".repeat(40000));
+    }
 }