diff --git a/src/raygui.h b/src/raygui.h
index fd4b6a9..55d05a8 100644
--- a/src/raygui.h
+++ b/src/raygui.h
@@ -1660,8 +1660,8 @@ Rectangle GuiScrollPanel(Rectangle bounds, const char *text, Rectangle content,
 #endif
             float wheelMove = GetMouseWheelMove();
 
-            // Horizontal scroll ((Left Control or Right Shift) + Mouse wheel)
-            if (hasHorizontalScrollBar && (IsKeyDown(KEY_LEFT_CONTROL) || IsKeyDown(KEY_RIGHT_SHIFT))) scrollPos.x += wheelMove*20;
+            // Horizontal scroll ((Left Control or Left Shift) + Mouse wheel)
+            if (hasHorizontalScrollBar && (IsKeyDown(KEY_LEFT_CONTROL) || IsKeyDown(KEY_LEFT_SHIFT))) scrollPos.x += wheelMove*20;
             else scrollPos.y += wheelMove*20; // Vertical scroll
         }
     }