diff --git a/src/theme.less b/src/theme.less
index b0b55a1fc..2f35f1eda 100644
--- a/src/theme.less
+++ b/src/theme.less
@@ -35,7 +35,7 @@
 -------------------*/
 
 .loadFonts() when (@importGoogleFonts) {
-  @import (css) 'http://fonts.googleapis.com/css?family=@{googleFontRequest}';
+  @import (css) '//fonts.googleapis.com/css?family=@{googleFontRequest}';
 }
 
 /*------------------