diff --git a/libavformat/allformats.c b/libavformat/allformats.c
index 0a24ac718b..bf3c7240d9 100644
--- a/libavformat/allformats.c
+++ b/libavformat/allformats.c
@@ -54,7 +54,6 @@ void av_register_all(void)
 
     if (initialized)
         return;
-    initialized = 1;
 
     avcodec_register_all();
 
@@ -402,4 +401,6 @@ void av_register_all(void)
     REGISTER_PROTOCOL(LIBRTMPTE,        librtmpte);
     REGISTER_PROTOCOL(LIBSSH,           libssh);
     REGISTER_PROTOCOL(LIBSMBCLIENT,     libsmbclient);
+
+    initialized = 1;
 }