diff --git a/packages/component-wizard/src/components/WizardStep.js b/packages/component-wizard/src/components/WizardStep.js
index 1ed0620d95306583c73cfe8acb119b31cfff7c79..869bbd53c983e36b04ef7f0edc7b7689a5fb5450 100644
--- a/packages/component-wizard/src/components/WizardStep.js
+++ b/packages/component-wizard/src/components/WizardStep.js
@@ -122,7 +122,7 @@ const ButtonContainer = styled.div`
   align-self: center;
   display: flex;
   justify-content: space-around;
-  margin: calc(th('gridUnit')) 0;
+  margin: calc(${th('gridUnit')}) 0;
   width: ${({ width }) => width || '400px'};
 `