diff --git a/gstreamer/src/typefind.rs b/gstreamer/src/typefind.rs
index 26d6c0e18..1fe00ce8a 100644
--- a/gstreamer/src/typefind.rs
+++ b/gstreamer/src/typefind.rs
@@ -293,7 +293,8 @@ mod tests {
                     );
                 }
             },
-        );
+        )
+        .unwrap();
 
         let data = b"abcdefgh";
         let data = &data[..];