diff --git a/libavfilter/f_perms.c b/libavfilter/f_perms.c
index 188ce91376..abe2e4f46f 100644
--- a/libavfilter/f_perms.c
+++ b/libavfilter/f_perms.c
@@ -37,7 +37,7 @@ typedef struct {
     const AVClass *class;
     AVLFG lfg;
     int64_t random_seed;
-    enum mode mode;
+    int mode;
 } PermsContext;
 
 #define OFFSET(x) offsetof(PermsContext, x)