diff --git a/scss/forms/_input-group.scss b/scss/forms/_input-group.scss
index 83d52c51e0..813679f0cc 100644
--- a/scss/forms/_input-group.scss
+++ b/scss/forms/_input-group.scss
@@ -120,10 +120,13 @@
     $validation-messages: $validation-messages + ":not(." + unquote($state) + "-tooltip)" + ":not(." + unquote($state) + "-feedback)";
   }
 
-  > :not(:first-child):not(.dropdown-menu):not(.form-floating)#{$validation-messages},
-  > .form-floating:not(:first-child) > .form-control,
-  > .form-floating:not(:first-child) > .form-select {
+  > :not(:first-child):not(.dropdown-menu)#{$validation-messages} {
     margin-left: -$input-border-width;
     @include border-start-radius(0);
   }
+
+  > .form-floating:not(:first-child) > .form-control,
+  > .form-floating:not(:first-child) > .form-select {
+    @include border-start-radius(0);
+  }
 }