diff --git a/masonry.module b/masonry.module
index 054b523..b45dc63 100644
--- a/masonry.module
+++ b/masonry.module
@@ -107,14 +107,14 @@ function masonry_add_masonry($settings = array()) {
         $container.masonry({
           itemSelector: "' . $settings['selectors']['item'] . '",
           columnWidth: ' . $column_width . ',
-          isAnimated: ' . $settings['masonry_animated'] . ',
+          isAnimated: ' . (int) $settings['masonry_animated'] . ',
           animationOptions: {
             duration: ' . (int) $settings['masonry_animated_duration'] . '
           },
-          isResizable: ' . $settings['masonry_resizable'] . ',
-          isFitWidth: ' . $settings['masonry_center'] . ',
+          isResizable: ' . (int) $settings['masonry_resizable'] . ',
+          isFitWidth: ' . (int) $settings['masonry_center'] . ',
           gutterWidth: ' . (int) $settings['masonry_gutter'] . ',
-          isRTL: ' . $settings['masonry_rtl'] . '
+          isRTL: ' . (int) $settings['masonry_rtl'] . '
         });
       });
     })(jQuery);';