diff --git a/scss/_input-group.scss b/scss/_input-group.scss
index 2f7b05d5d82d..78d7bc99aa89 100644
--- a/scss/_input-group.scss
+++ b/scss/_input-group.scss
@@ -46,9 +46,9 @@
     align-items: center;
 
     &:not(:last-child) .custom-file-label,
-    &:not(:last-child) .custom-file-label::before { @include border-right-radius(0); }
+    &:not(:last-child) .custom-file-label::after { @include border-right-radius(0); }
     &:not(:first-child) .custom-file-label,
-    &:not(:first-child) .custom-file-label::before { @include border-left-radius(0); }
+    &:not(:first-child) .custom-file-label::after { @include border-left-radius(0); }
   }
 }