diff --git a/src/de/inetsoftware/jwebassembly/module/WasmCallIndirectInstruction.java b/src/de/inetsoftware/jwebassembly/module/WasmCallIndirectInstruction.java
index 66c8baa..81c427f 100644
--- a/src/de/inetsoftware/jwebassembly/module/WasmCallIndirectInstruction.java
+++ b/src/de/inetsoftware/jwebassembly/module/WasmCallIndirectInstruction.java
@@ -20,7 +20,6 @@ import java.io.IOException;
 
 import javax.annotation.Nonnull;
 
-import de.inetsoftware.jwebassembly.javascript.JavaScriptSyntheticFunctionName;
 import de.inetsoftware.jwebassembly.module.TypeManager.StructType;
 import de.inetsoftware.jwebassembly.wasm.MemoryOperator;
 import de.inetsoftware.jwebassembly.wasm.NamedStorageType;
@@ -123,7 +122,7 @@ class WasmCallIndirectInstruction extends WasmCallInstruction {
                 writer.writeStructOperator( StructOperator.GET, type, new NamedStorageType( type, "", "vtable" ), 0 ); // vtable is ever on position 0
             } else {
                 writer.writeConst( 0, ValueType.i32 ); // vtable is ever on position 0
-                writer.writeFunctionCall( new JavaScriptSyntheticFunctionName( "NonGC", "get_i32", () -> "(a,i) => a[i]", ValueType.anyref, ValueType.i32, null, ValueType.i32 ) );
+                writer.writeFunctionCall( WasmCodeBuilder.GET_I32 );
             }
             writer.writeMemoryOperator( MemoryOperator.load, ValueType.i32, virtualFunctionIdx * 4, 2 );
             writer.writeVirtualFunctionCall( getFunctionName(), type );
diff --git a/src/de/inetsoftware/jwebassembly/module/WasmCodeBuilder.java b/src/de/inetsoftware/jwebassembly/module/WasmCodeBuilder.java
index 896f3a0..c1d06f3 100644
--- a/src/de/inetsoftware/jwebassembly/module/WasmCodeBuilder.java
+++ b/src/de/inetsoftware/jwebassembly/module/WasmCodeBuilder.java
@@ -29,6 +29,7 @@ import de.inetsoftware.classparser.LocalVariableTable;
 import de.inetsoftware.classparser.Member;
 import de.inetsoftware.classparser.MethodInfo;
 import de.inetsoftware.jwebassembly.WasmException;
+import de.inetsoftware.jwebassembly.javascript.JavaScriptSyntheticFunctionName;
 import de.inetsoftware.jwebassembly.javascript.NonGC;
 import de.inetsoftware.jwebassembly.module.WasmInstruction.Type;
 import de.inetsoftware.jwebassembly.wasm.AnyType;
@@ -50,6 +51,11 @@ import de.inetsoftware.jwebassembly.wasm.WasmOptions;
  */
 public abstract class WasmCodeBuilder {
 
+    /**
+     * declare for frequently use of virtual call with non GC mode.
+     */
+    static final SyntheticFunctionName GET_I32 = new JavaScriptSyntheticFunctionName( "NonGC", "get_i32", () -> "(a,i) => a[i]", ValueType.anyref, ValueType.i32, null, ValueType.i32 );
+
     private final LocaleVariableManager localVariables = new LocaleVariableManager();
 
     private final List<WasmInstruction> instructions   = new ArrayList<>();
@@ -486,6 +492,10 @@ public abstract class WasmCodeBuilder {
         }
         virtualCall.setVariableIndexOfThis( varIndex );
         instructions.add( virtualCall );
+        if( !options.useGC() ) {
+            functions.markAsNeeded( GET_I32, true );
+            functions.markAsImport( GET_I32, GET_I32.getAnnotation() );
+        }
     }
 
     /**