1 files changed, 1 insertions, 2 deletions

diff --git a/win32/mingw.c b/win32/mingw.c
index 10169266d..162fae45b 100644
--- a/win32/mingw.c
+++ b/win32/mingw.c
@@ -332,8 +332,7 @@ static int has_exec_format(const char *name)
         unsigned char buf[1024];
 
         /* special case: skip DLLs, there are thousands of them! */
-        n = strlen(name);
-        if (n > 4 && !strcasecmp(name+n-4, ".dll"))
+        if (is_suffixed_with_case(name, ".dll"))
                 return 0;
 
         n = open_read_close(name, buf, sizeof(buf));