diff --git a/vm/code_blocks.cpp b/vm/code_blocks.cpp
index 17d9fe075a..78a6f318aa 100755
--- a/vm/code_blocks.cpp
+++ b/vm/code_blocks.cpp
@@ -27,6 +27,7 @@ cell code_block::scan(factor_vm *vm, void *addr) const
 				return false_object;
 		}
 	case code_block_optimized:
+	case code_block_pic:
 		return false_object;
 	default:
 		critical_error("Bad frame type",type());