diff --git a/package/src/theme/defaultTheme.js b/package/src/theme/defaultTheme.js
index e8f20a38..323e1126 100644
--- a/package/src/theme/defaultTheme.js
+++ b/package/src/theme/defaultTheme.js
@@ -226,6 +226,7 @@ export const rawMuiTheme = {
     },
     MuiButton: {
       root: {
+        lineHeight: 1.5,
         padding: `${defaultSpacingUnit}px ${defaultSpacingUnit * 2}px`,
         textTransform: "initial"
       },