diff --git a/src/filesystem/windows/SDL_sysfilesystem.c b/src/filesystem/windows/SDL_sysfilesystem.c
index 5e223d7cc..a2e213212 100644
--- a/src/filesystem/windows/SDL_sysfilesystem.c
+++ b/src/filesystem/windows/SDL_sysfilesystem.c
@@ -68,7 +68,9 @@ SDL_GetBasePath(void)
         path = (WCHAR *) ptr;
 
         len = pGetModuleFileNameExW(GetCurrentProcess(), NULL, path, buflen);
-        if (len != buflen) {
+        /* if it truncated, then len >= buflen - 1 */
+        /* if there was enough room (or failure), len < buflen - 1 */
+        if (len < buflen - 1) {
             break;
         }