diff --git a/commands/image-editing/speechbubble.js b/commands/image-editing/speechbubble.js
index 07859da..4e3d40c 100644
--- a/commands/image-editing/speechbubble.js
+++ b/commands/image-editing/speechbubble.js
@@ -7,8 +7,8 @@ class SpeechBubbleCommand extends ImageCommand {
       gravity: "north",
       resize: true,
       yscale: 0.2,
-      alpha: this.options.alpha,
-      flip: this.options.flip
+      alpha: this.options.alpha ? true : false,
+      flip: this.options.flip ? true : false
     };
   }