diff --git a/superset-frontend/src/SqlLab/main.less b/superset-frontend/src/SqlLab/main.less
index 707670891..1c6d1ec7d 100644
--- a/superset-frontend/src/SqlLab/main.less
+++ b/superset-frontend/src/SqlLab/main.less
@@ -366,6 +366,11 @@ div.tablePopover {
   border: 1px solid @gray-light;
 }
 
+.ace_editor,
+.ace_editor div {
+  font-family: @font-family-monospace;
+}
+
 .Select-menu-outer {
   min-width: 100%;
   width: inherit;