diff --git a/reactos/tools/config.mk b/reactos/tools/config.mk
index 477e0d8be4a..d35948ec707 100644
--- a/reactos/tools/config.mk
+++ b/reactos/tools/config.mk
@@ -26,11 +26,11 @@ CONFIG += ACPI
 endif
 
 
-$(PATH_TO_TOP)/tools/mkconfig$(EXE_SUFFIX): $(PATH_TO_TOP)/tools/mkconfig.c
-	$(HOST_CC) -g -o $(PATH_TO_TOP)/tools/mkconfig$(EXE_SUFFIX) $(PATH_TO_TOP)/tools/mkconfig.c
+$(PATH_TO_TOP)/tools/mkconfig$(EXE_POSTFIX): $(PATH_TO_TOP)/tools/mkconfig.c
+	$(HOST_CC) -g -o $(PATH_TO_TOP)/tools/mkconfig$(EXE_POSTFIX) $(PATH_TO_TOP)/tools/mkconfig.c
 
-$(PATH_TO_TOP)/config: $(PATH_TO_TOP)/tools/mkconfig$(EXE_SUFFIX)
-	$(PATH_TO_TOP)/tools/mkconfig$(EXE_SUFFIX) $(PATH_TO_TOP)/include/roscfg.h$(CONFIG)
+$(PATH_TO_TOP)/config: $(PATH_TO_TOP)/tools/mkconfig$(EXE_POSTFIX)
+	$(PATH_TO_TOP)/tools/mkconfig$(EXE_POSTFIX) $(PATH_TO_TOP)/include/roscfg.h$(CONFIG)
 
 $(PATH_TO_TOP)/include/roscfg.h: $(PATH_TO_TOP)/config
-	$(PATH_TO_TOP)/tools/mkconfig$(EXE_SUFFIX) $(PATH_TO_TOP)/include/roscfg.h$(CONFIG)
+	$(PATH_TO_TOP)/tools/mkconfig$(EXE_POSTFIX) $(PATH_TO_TOP)/include/roscfg.h$(CONFIG)