diff --git a/src/lib/ffmpeg.cpp b/src/lib/ffmpeg.cpp
index c3170c8ce..c8b18b071 100644
--- a/src/lib/ffmpeg.cpp
+++ b/src/lib/ffmpeg.cpp
@@ -401,7 +401,9 @@ int ncvisual_decode_loop(ncvisual* ncv){
       // FIXME log error
       return -1;
     }
-    return ncvisual_decode(ncv);
+    if(ncvisual_decode(ncv) < 0){
+      return -1;
+    }
   }
   return r;
 }
diff --git a/src/lib/oiio.cpp b/src/lib/oiio.cpp
index 959dc10c7..ee9ad7731 100644
--- a/src/lib/oiio.cpp
+++ b/src/lib/oiio.cpp
@@ -87,7 +87,9 @@ int ncvisual_decode_loop(ncvisual* ncv){
       return -1;
     }
     ncv->details.framenum = 0;
-    return ncvisual_decode(ncv);
+    if(ncvisual_decode(ncv) < 0){
+      return -1;
+    }
   }
   return r;
 }