diff --git a/debug_toolbar/middleware.py b/debug_toolbar/middleware.py
index e1cf32d23..df4516b4f 100644
--- a/debug_toolbar/middleware.py
+++ b/debug_toolbar/middleware.py
@@ -78,7 +78,7 @@ def __call__(self, request):
         content_type = response.get("Content-Type", "").split(";")[0]
         if (
             getattr(response, "streaming", False)
-            or "gzip" in content_encoding
+            or content_encoding != ""
             or content_type not in _HTML_TYPES
         ):
             return response