diff --git a/src/main/java/org/mesutormanli/visualnovel/engine/util/RelativeLayout.java b/src/main/java/org/mesutormanli/visualnovel/engine/util/RelativeLayout.java
index 7671ba7..046c8b5 100644
--- a/src/main/java/org/mesutormanli/visualnovel/engine/util/RelativeLayout.java
+++ b/src/main/java/org/mesutormanli/visualnovel/engine/util/RelativeLayout.java
@@ -507,7 +507,7 @@ private void layoutContainerVertically(Container parent) {
                 Dimension d = component.getPreferredSize();
                 spaceAvailable -= d.height;
             } else {
-                relativeTotal += constraint.doubleValue();
+                relativeTotal += constraint.floatValue();
             }
         }