diff --git a/gfx/wr/webrender/src/platform/unix/font.rs b/gfx/wr/webrender/src/platform/unix/font.rs
index 52c0d114101c..1debfe488cd2 100644
--- a/gfx/wr/webrender/src/platform/unix/font.rs
+++ b/gfx/wr/webrender/src/platform/unix/font.rs
@@ -336,7 +336,9 @@ impl FontContext {
         } else {
             // TODO(gw): Provide detailed error values.
             Err(ResourceCacheError::new(
-                format!("Failed to initialize FreeType - {}", result)
+                // Once this panic has been here for a while with no issues we should get rid of
+                // ResourceCacheError as this was the only place that could fail previously.
+                panic!("Failed to initialize FreeType - {}", result)
             ))
         }
     }