diff --git a/app/assets/stylesheets/pages/diff.scss b/app/assets/stylesheets/pages/diff.scss
index 1aa1079903ca867f5ddd477038c0a56cfbb9c3bc..1b4694377b30ef6e3dab1586a2d87a0c521e730f 100644
--- a/app/assets/stylesheets/pages/diff.scss
+++ b/app/assets/stylesheets/pages/diff.scss
@@ -106,6 +106,10 @@
         span {
           white-space: pre-wrap;
         }
+
+        .line {
+          word-wrap: break-word;
+        }
       }
     }