diff --git a/src/video/x11/SDL_x11clipboard.c b/src/video/x11/SDL_x11clipboard.c
index 7cd58a0ad..41098409f 100644
--- a/src/video/x11/SDL_x11clipboard.c
+++ b/src/video/x11/SDL_x11clipboard.c
@@ -234,7 +234,7 @@ static void *GetSelectionData(SDL_VideoDevice *_this, Atom selection_type, size_
     }
 
     if (nullterminate && data == NULL) {
-        data = strdup("");
+        data = SDL_strdup("");
     }
 
     return data;