diff --git a/packages/theme/src/v5/defaultComponentThemes.ts b/packages/theme/src/v5/defaultComponentThemes.ts
index eec52e1c8b..bd29ad38c5 100644
--- a/packages/theme/src/v5/defaultComponentThemes.ts
+++ b/packages/theme/src/v5/defaultComponentThemes.ts
@@ -187,12 +187,12 @@ export const defaultComponentThemes: ThemeOptions['components'] = {
         color: theme.palette.grey[500],
         width: theme.spacing(3),
         height: theme.spacing(3),
-        margin: `0 ${theme.spacing(0.75)}px 0 -${theme.spacing(0.75)}`,
+        margin: `0 ${theme.spacing(0.75)} 0 -${theme.spacing(0.75)}`,
       }),
       deleteIconSmall: ({ theme }) => ({
         width: theme.spacing(2),
         height: theme.spacing(2),
-        margin: `0 ${theme.spacing(0.5)}px 0 -${theme.spacing(0.5)}`,
+        margin: `0 ${theme.spacing(0.5)} 0 -${theme.spacing(0.5)}`,
       }),
     },
   },