diff --git a/ChangeLog b/ChangeLog
index 69f8211262..a7f8f42c0d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2005-11-03  Tim-Philipp Müller  <tim at centricular dot net>
+
+	* gst/gstminiobject.h:
+	* gst/gstobject.h:
+	  Add !! to _FLAG_IS_SET macros to make the result boolean.
+
 2005-11-03  Edward Hervey  <edward@fluendo.com>
 
 	* gst/gstpad.c: (gst_pad_set_blocked_async):
diff --git a/gst/gstminiobject.h b/gst/gstminiobject.h
index b72a715391..65e31aeef5 100644
--- a/gst/gstminiobject.h
+++ b/gst/gstminiobject.h
@@ -72,7 +72,7 @@ typedef void (*GstMiniObjectFinalizeFunction) (GstMiniObject *obj);
  *
  * This macro checks to see if the given flag is set.
  */
-#define GST_MINI_OBJECT_FLAG_IS_SET(obj,flag)        (GST_MINI_OBJECT_FLAGS (obj) & (flag))
+#define GST_MINI_OBJECT_FLAG_IS_SET(obj,flag)        !!(GST_MINI_OBJECT_FLAGS (obj) & (flag))
 /**
  * GST_MINI_OBJECT_FLAG_SET:
  * @obj: MiniObject to set flag in.
diff --git a/gst/gstobject.h b/gst/gstobject.h
index dcced647a5..bb12839b57 100644
--- a/gst/gstobject.h
+++ b/gst/gstobject.h
@@ -147,7 +147,7 @@ typedef enum
  *
  * This macro checks to see if the given flag is set.
  */
-#define GST_OBJECT_FLAG_IS_SET(obj,flag)       (GST_OBJECT_FLAGS (obj) & (flag))
+#define GST_OBJECT_FLAG_IS_SET(obj,flag)       !!(GST_OBJECT_FLAGS (obj) & (flag))
 /**
  * GST_OBJECT_FLAG_SET:
  * @obj: Object to set flag in.