diff --git a/etc/soft/joplin/userchrome.css b/etc/soft/joplin/userchrome.css
index addf186..6bfe585 100644
--- a/etc/soft/joplin/userchrome.css
+++ b/etc/soft/joplin/userchrome.css
@@ -2227,6 +2227,10 @@ body {
 	background-color: white !important;
 }
 
+.cm-jn-code-block {
+	background-color: white !important;
+}
+
 /* Default theme */
 .cm-s-default .cm-attribute {color: #00c !important;}
 .cm-s-default .cm-bracket {color: #997 !important;}