diff --git a/src/common.h b/src/common.h
index 50079f26..3c73be4d 100644
--- a/src/common.h
+++ b/src/common.h
@@ -29,13 +29,13 @@
 #include <variant>
 #include <type_traits>
 
-#define PK_VERSION				"0.9.8"
+#define PK_VERSION				"0.9.9"
 
 // debug macros
 #define DEBUG_NO_BUILTIN_MODULES	0
 #define DEBUG_EXTRA_CHECK			1
 #define DEBUG_DIS_EXEC				0
-#define DEBUG_CEVAL_STEP			0
+#define DEBUG_CEVAL_STEP			1
 #define DEBUG_CEVAL_STEP_MIN		0
 #define DEBUG_FULL_EXCEPTION		0
 #define DEBUG_MEMORY_POOL			0
diff --git a/src/pocketpy.h b/src/pocketpy.h
index fed0c9f1..821ff898 100644
--- a/src/pocketpy.h
+++ b/src/pocketpy.h
@@ -781,9 +781,9 @@ inline void VM::post_init(){
 
     CodeObject_ code = compile(kPythonLibs["builtins"], "<builtins>", EXEC_MODE);
     this->_exec(code, this->builtins);
-    code = compile(kPythonLibs["_dict"], "<builtins>", EXEC_MODE);
+    code = compile(kPythonLibs["_dict"], "<dict>", EXEC_MODE);
     this->_exec(code, this->builtins);
-    code = compile(kPythonLibs["_set"], "<builtins>", EXEC_MODE);
+    code = compile(kPythonLibs["_set"], "<set>", EXEC_MODE);
     this->_exec(code, this->builtins);
 
     // property is defined in builtins.py so we need to add it after builtins is loaded