diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index b435660d78..afae24a8bf 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -2640,6 +2640,19 @@ radio {
 
   &:only-child { margin: 0; }
 
+  popover & { // when in a popover add more space between the label and the check, reset the other side margin.
+              // See https://bugzilla.gnome.org/show_bug.cgi?id=779570 for details.
+    &.left:dir(rtl) {
+      margin-left: 0;
+      margin-right: 12px;
+    }
+
+    &.right:dir(ltr) {
+      margin-left: 12px;
+      margin-right: 0;
+    }
+  }
+
   min-height: 14px;
   min-width: 14px;
   border: 1px solid;