diff --git a/Lazy.Captcha.Core/Generator/Image/DefaultCaptchaImageGenerator.cs b/Lazy.Captcha.Core/Generator/Image/DefaultCaptchaImageGenerator.cs
index bb57883956685e45a1c81b5976c4d058f28f3727..29c4d8293e43b9962a8bd06962b51e37b0baf9ce 100644
--- a/Lazy.Captcha.Core/Generator/Image/DefaultCaptchaImageGenerator.cs
+++ b/Lazy.Captcha.Core/Generator/Image/DefaultCaptchaImageGenerator.cs
@@ -382,7 +382,7 @@ namespace Lazy.Captcha.Core.Generator.Image
                 GenerateBubbleGraphicDescriptions(option.Width, option.Height, option.BubbleCount, option.BubbleMinRadius, option.BubbleMaxRadius, option.BubbleThickness, option.ForegroundColors)
                 :
                 new List<BubbleGraphicDescription>();
-            var interferenceLineGraphicDescriptions = option.BubbleCount != 0 ?
+            var interferenceLineGraphicDescriptions = option.InterferenceLineCount != 0 ?
                 GenerateInterferenceLineGraphicDescriptions(option.Width, option.Height, option.InterferenceLineCount, option.ForegroundColors)
                 :
                 new List<InterferenceLineGraphicDescription>();