diff --git a/src/scss/cdb-components/forms/_option-input.scss b/src/scss/cdb-components/forms/_option-input.scss
index 81f11c0..7434b7c 100644
--- a/src/scss/cdb-components/forms/_option-input.scss
+++ b/src/scss/cdb-components/forms/_option-input.scss
@@ -132,7 +132,7 @@
     cursor: pointer;
   }
 
-  &:first-child {
+  &:not(:only-child):first-child {
     width: auto;
     margin-right: $baseSize;
   }