diff --git a/src/main/java/com/google/api/generator/gapic/composer/MockServiceImplClassComposer.java b/src/main/java/com/google/api/generator/gapic/composer/MockServiceImplClassComposer.java
index 2c322a05d4..000e133a1a 100644
--- a/src/main/java/com/google/api/generator/gapic/composer/MockServiceImplClassComposer.java
+++ b/src/main/java/com/google/api/generator/gapic/composer/MockServiceImplClassComposer.java
@@ -155,7 +155,6 @@ private static MethodDefinition createConstructor(TypeNode classType) {
 
   private static MethodDefinition createGetRequestsMethod() {
     return MethodDefinition.builder()
-        .setIsOverride(true)
         .setScope(ScopeNode.PUBLIC)
         .setReturnType(requestsVarExpr.type())
         .setName("getRequests")
@@ -177,7 +176,6 @@ private static MethodDefinition createAddResponseMethod() {
             .setExprReferenceExpr(responsesVarExpr)
             .build();
     return MethodDefinition.builder()
-        .setIsOverride(true)
         .setScope(ScopeNode.PUBLIC)
         .setReturnType(TypeNode.VOID)
         .setName("addResponse")
@@ -220,7 +218,6 @@ private static MethodDefinition createSetResponsesMethod(Service service) {
                     .build())
             .build();
     return MethodDefinition.builder()
-        .setIsOverride(true)
         .setScope(ScopeNode.PUBLIC)
         .setReturnType(TypeNode.VOID)
         .setName("setResponses")
@@ -243,7 +240,6 @@ private static MethodDefinition createAddExceptionMethod() {
             .setExprReferenceExpr(responsesVarExpr)
             .build();
     return MethodDefinition.builder()
-        .setIsOverride(true)
         .setScope(ScopeNode.PUBLIC)
         .setReturnType(TypeNode.VOID)
         .setName("addException")
@@ -254,7 +250,6 @@ private static MethodDefinition createAddExceptionMethod() {
 
   private static MethodDefinition createResetMethod() {
     return MethodDefinition.builder()
-        .setIsOverride(true)
         .setScope(ScopeNode.PUBLIC)
         .setReturnType(TypeNode.VOID)
         .setName("reset")
diff --git a/src/test/java/com/google/api/generator/gapic/composer/MockServiceImplClassComposerTest.java b/src/test/java/com/google/api/generator/gapic/composer/MockServiceImplClassComposerTest.java
index 8fe7478590..6bdfa66035 100644
--- a/src/test/java/com/google/api/generator/gapic/composer/MockServiceImplClassComposerTest.java
+++ b/src/test/java/com/google/api/generator/gapic/composer/MockServiceImplClassComposerTest.java
@@ -86,27 +86,22 @@ public void generateServiceClasses() {
           + "    responses = new LinkedList<>();\n"
           + "  }\n"
           + "\n"
-          + "  @Override\n"
           + "  public List<AbstractMessage> getRequests() {\n"
           + "    return requests;\n"
           + "  }\n"
           + "\n"
-          + "  @Override\n"
           + "  public void addResponse(AbstractMessage response) {\n"
           + "    responses.add(response);\n"
           + "  }\n"
           + "\n"
-          + "  @Override\n"
           + "  public void setResponses(List<AbstractMessage> responses) {\n"
           + "    this.responses = new LinkedList<Object>(responses);\n"
           + "  }\n"
           + "\n"
-          + "  @Override\n"
           + "  public void addException(Exception exception) {\n"
           + "    responses.add(exception);\n"
           + "  }\n"
           + "\n"
-          + "  @Override\n"
           + "  public void reset() {\n"
           + "    requests = new ArrayList<>();\n"
           + "    responses = new LinkedList<>();\n"