diff --git a/scss/_custom-forms.scss b/scss/_custom-forms.scss
index 234ec8a3a9f6..0dd4c0826616 100644
--- a/scss/_custom-forms.scss
+++ b/scss/_custom-forms.scss
@@ -137,9 +137,11 @@
   .custom-control-input:disabled {
     &:checked ~ .custom-control-label::before {
       background-color: $custom-control-indicator-checked-disabled-bg;
+      @include gradient-bg($custom-control-indicator-checked-disabled-bg);
     }
     &:indeterminate ~ .custom-control-label::before {
       background-color: $custom-control-indicator-checked-disabled-bg;
+      @include gradient-bg($custom-control-indicator-checked-disabled-bg);
     }
   }
 }
@@ -163,6 +165,7 @@
   .custom-control-input:disabled {
     &:checked ~ .custom-control-label::before {
       background-color: $custom-control-indicator-checked-disabled-bg;
+      @include gradient-bg($custom-control-indicator-checked-disabled-bg);
     }
   }
 }
@@ -206,6 +209,7 @@
   .custom-control-input:disabled {
     &:checked ~ .custom-control-label::before {
       background-color: $custom-control-indicator-checked-disabled-bg;
+      @include gradient-bg($custom-control-indicator-checked-disabled-bg);
     }
   }
 }