diff --git a/themes/metro/scss/_variables.scss b/themes/metro/scss/_variables.scss
index c04c0f3dca..2f4c60e465 100644
--- a/themes/metro/scss/_variables.scss
+++ b/themes/metro/scss/_variables.scss
@@ -195,6 +195,7 @@ $dropdown-border-radius: 0;
 
 $input-border-radius: 0;
 $form-check-input-margin-y: 0;
+$label-margin-bottom: 0;
 
 // Navbar
 
diff --git a/themes/pmahomme/scss/_variables.scss b/themes/pmahomme/scss/_variables.scss
index d833cb3b99..c5db9d3aab 100644
--- a/themes/pmahomme/scss/_variables.scss
+++ b/themes/pmahomme/scss/_variables.scss
@@ -137,3 +137,7 @@ $alert-border-radius: 5px;
 $list-group-bg: inherit;
 $list-group-item-padding-x: 0;
 $list-group-item-padding-y: 0;
+
+// Forms
+
+$label-margin-bottom: 0;