diff --git a/src/secureinput_w.c b/src/secureinput_w.c
old mode 100644
new mode 100755
index 7995579..5adc3c0
--- a/src/secureinput_w.c
+++ b/src/secureinput_w.c
@@ -29,6 +29,8 @@
 #include <wchar.h>
 #endif
 
+/* fix redefined */
+#undef SECUREC_ENABLE_WCHAR_FUNC
 /* Disable wchar func to clear vs warning */
 #define SECUREC_ENABLE_WCHAR_FUNC       0
 #define SECUREC_FORMAT_OUTPUT_INPUT     1
diff --git a/src/secureprintoutput_w.c b/src/secureprintoutput_w.c
old mode 100644
new mode 100755
index 4d06a64..753d465
--- a/src/secureprintoutput_w.c
+++ b/src/secureprintoutput_w.c
@@ -28,6 +28,8 @@
 #include <wchar.h>
 #endif
 
+/* fix redefined */
+#undef SECUREC_ENABLE_WCHAR_FUNC
 /* Disable wchar func to clear vs warning */
 #define SECUREC_ENABLE_WCHAR_FUNC   0
 #define SECUREC_FORMAT_OUTPUT_INPUT 1