diff --git a/rostests/apitests/gdi32/GetGlyphIndices.c b/rostests/apitests/gdi32/GetGlyphIndices.c
index eb03c08b3bb..c7ddc0f2657 100644
--- a/rostests/apitests/gdi32/GetGlyphIndices.c
+++ b/rostests/apitests/gdi32/GetGlyphIndices.c
@@ -8,7 +8,7 @@
 #include <apitest.h>
 #include <wingdi.h>
 #include <winuser.h>
-#include <Strsafe.h>
+#include <strsafe.h>
 
 
 #define ok_lasterrornotchanged() \