diff --git a/components/canvas/webgl_thread.rs b/components/canvas/webgl_thread.rs
index 730071421d9..8797fac4372 100644
--- a/components/canvas/webgl_thread.rs
+++ b/components/canvas/webgl_thread.rs
@@ -884,7 +884,7 @@ impl WebGLImpl {
         // TODO: update test expectations in order to enable debug assertions
         //if cfg!(debug_assertions) {
             let error = ctx.gl().get_error();
-            assert!(error == gl::NO_ERROR, "Unexpected WebGL error: 0x{:x} ({})", error, error);
+            assert_eq!(error, gl::NO_ERROR, "Unexpected WebGL error: 0x{:x} ({})", error, error);
         //}
     }