diff --git a/src/nm-properties-changed-signal.c b/src/nm-properties-changed-signal.c
index da07fca07..ab6853a55 100644
--- a/src/nm-properties-changed-signal.c
+++ b/src/nm-properties-changed-signal.c
@@ -47,7 +47,6 @@ properties_changed_info_destroy (gpointer data)
 	g_slice_free (PropertiesChangedInfo, info);
 }
 
-#define DEBUG
 #ifdef DEBUG
 static void
 add_to_string (gpointer key, gpointer value, gpointer user_data)