diff --git a/js/rmmz_windows.js b/js/rmmz_windows.js
index 41a484d..f53be68 100644
--- a/js/rmmz_windows.js
+++ b/js/rmmz_windows.js
@@ -403,13 +403,13 @@ Window_Base.prototype.processDrawIcon = function(iconIndex, textState) {
 
 Window_Base.prototype.makeFontBigger = function() {
     if (this.contents.fontSize <= 96) {
-        this.contents.fontSize += 12;
+        this.contents.fontSize += 6;
     }
 };
 
 Window_Base.prototype.makeFontSmaller = function() {
     if (this.contents.fontSize >= 24) {
-        this.contents.fontSize -= 12;
+        this.contents.fontSize -= 6;
     }
 };