diff --git a/tests/makefile.vc b/tests/makefile.vc
index dfa04f3367..151f5f18e8 100644
--- a/tests/makefile.vc
+++ b/tests/makefile.vc
@@ -140,10 +140,10 @@ PORTNAME = base
 !if "$(USE_GUI)" == "1"
 PORTNAME = msw
 !endif
-!if "$(BUILD)" == "debug" && "$(DEBUG_FLAG)" == "default"
+!if "$(BUILD)" == "debug" && "$(DEBUG_RUNTIME_LIBS)" == "default"
 WXDEBUGFLAG = d
 !endif
-!if "$(DEBUG_FLAG)" == "1"
+!if "$(DEBUG_RUNTIME_LIBS)" == "1"
 WXDEBUGFLAG = d
 !endif
 !if "$(UNICODE)" == "1"
@@ -227,11 +227,8 @@ __NO_VC_CRTDBG_p_3 = /d __NO_VC_CRTDBG__
 !if "$(WXUNIV)" == "1"
 __WXUNIV_DEFINE_p_3 = /d __WXUNIVERSAL__
 !endif
-!if "$(BUILD)" == "debug" && "$(DEBUG_FLAG)" == "default"
-__DEBUG_DEFINE_p_3 = /d __WXDEBUG__
-!endif
-!if "$(DEBUG_FLAG)" == "1"
-__DEBUG_DEFINE_p_3 = /d __WXDEBUG__
+!if "$(DEBUG_FLAG)" == "0"
+__DEBUG_DEFINE_p_3 = /d wxDEBUG_LEVEL=0
 !endif
 !if "$(USE_EXCEPTIONS)" == "0"
 __EXCEPTIONS_DEFINE_p_3 = /d wxNO_EXCEPTIONS
@@ -367,11 +364,8 @@ __NO_VC_CRTDBG_p = /D__NO_VC_CRTDBG__
 !if "$(WXUNIV)" == "1"
 __WXUNIV_DEFINE_p = /D__WXUNIVERSAL__
 !endif
-!if "$(BUILD)" == "debug" && "$(DEBUG_FLAG)" == "default"
-__DEBUG_DEFINE_p = /D__WXDEBUG__
-!endif
-!if "$(DEBUG_FLAG)" == "1"
-__DEBUG_DEFINE_p = /D__WXDEBUG__
+!if "$(DEBUG_FLAG)" == "0"
+__DEBUG_DEFINE_p = /DwxDEBUG_LEVEL=0
 !endif
 !if "$(USE_EXCEPTIONS)" == "0"
 __EXCEPTIONS_DEFINE_p = /DwxNO_EXCEPTIONS