diff --git a/libavformat/framehook.c b/libavformat/framehook.c
index 03bbc95f6d71afeef6fa8072306114eb6cb5cb7e..e9a11af9ae908f2109f68a5e7826859d5e861fda 100644
--- a/libavformat/framehook.c
+++ b/libavformat/framehook.c
@@ -57,7 +57,7 @@ int frame_hook_add(int argc, char *argv[])
 
     fhe = av_mallocz(sizeof(*fhe));
     if (!fhe) {
-        return errno;
+        return -ENOMEM;
     }
 
     fhe->Configure = dlsym(loaded, "Configure");