diff --git a/src/theme.js b/src/theme.js
index a4d44520..8d0c2735 100644
--- a/src/theme.js
+++ b/src/theme.js
@@ -405,6 +405,10 @@ const sharedStyles = {
           marginTop: 0,
         },
       },
+
+      '& .gatsby-highlight': {
+        marginLeft: 0,
+      },
     },
 
     '& .gatsby-highlight + blockquote': {