diff --git a/scss/forms/_form-check.scss b/scss/forms/_form-check.scss
index f8d9b08f8ce7..d3a8fe60da33 100644
--- a/scss/forms/_form-check.scss
+++ b/scss/forms/_form-check.scss
@@ -29,6 +29,7 @@
 .form-check-input {
   --#{$prefix}form-check-bg: #{$form-check-input-bg};
 
+  flex-shrink: 0;
   width: $form-check-input-width;
   height: $form-check-input-width;
   margin-top: ($line-height-base - $form-check-input-width) * .5; // line-height minus check height