diff --git a/ASTree.cpp b/ASTree.cpp
index b5b42f7..5f5603a 100644
--- a/ASTree.cpp
+++ b/ASTree.cpp
@@ -2500,8 +2500,6 @@ PycRef<ASTNode> BuildFromCode(PycRef<PycCode> code, PycModule* mod)
                 stack.push(next_tup);
             }
             break;
-        case Pyc::COPY_A:
-            break;
         default:
             fprintf(stderr, "Unsupported opcode: %s (%d)\n", Pyc::OpcodeName(opcode), opcode);
             cleanBuild = false;