diff --git a/libnm-core/nm-setting.h b/libnm-core/nm-setting.h
index e3c128ffb2..3576bdc663 100644
--- a/libnm-core/nm-setting.h
+++ b/libnm-core/nm-setting.h
@@ -270,7 +270,7 @@ typedef enum {
 	NM_SETTING_DIFF_RESULT_IN_A =    0x00000001,
 	NM_SETTING_DIFF_RESULT_IN_B =    0x00000002,
 	NM_SETTING_DIFF_RESULT_IN_A_DEFAULT = 0x00000004,
-	NM_SETTING_DIFF_RESULT_IN_B_DEFAULT = 0x00000004,
+	NM_SETTING_DIFF_RESULT_IN_B_DEFAULT = 0x00000008,
 } NMSettingDiffResult;
 
 gboolean    nm_setting_diff          (NMSetting *a,