diff --git a/web/src/index.css b/web/src/index.css
index 8ebfc0a296..22185a9209 100644
--- a/web/src/index.css
+++ b/web/src/index.css
@@ -306,7 +306,7 @@ pre.version {
 }
 pre.zuul-log-output
 {
-    overflow: inherit;
+    overflow-x: auto;
     background-color: inherit;
     border: none;
 }