diff --git a/headers/private/media/experimental/MediaClientDefs.h b/headers/private/media/experimental/MediaClientDefs.h
index 37af1d6ec0..4265b53c7a 100644
--- a/headers/private/media/experimental/MediaClientDefs.h
+++ b/headers/private/media/experimental/MediaClientDefs.h
@@ -13,10 +13,11 @@
 namespace BPrivate { namespace media {
 
 
-typedef uint64 media_client_id;
+typedef int64 media_client_id;
+typedef int64 media_connection_id;
+
 typedef uint64 media_client_kinds;
 typedef uint64 media_connection_kinds;
-typedef uint64 media_connection_id;
 
 
 enum media_client_kind {
diff --git a/src/kits/media/experimental/MediaClient.cpp b/src/kits/media/experimental/MediaClient.cpp
index f8f03a23f8..b5c937e4fc 100755
--- a/src/kits/media/experimental/MediaClient.cpp
+++ b/src/kits/media/experimental/MediaClient.cpp
@@ -78,7 +78,7 @@ public:
 BMediaClient::BMediaClient(const char* name,
 	media_type type, media_client_kinds kinds)
 	:
-	fLastID(0)
+	fLastID(-1)
 {
 	CALLED();
 
diff --git a/src/kits/media/experimental/MediaConnection.cpp b/src/kits/media/experimental/MediaConnection.cpp
index 91b8bc5823..a16dfb7637 100644
--- a/src/kits/media/experimental/MediaConnection.cpp
+++ b/src/kits/media/experimental/MediaConnection.cpp
@@ -21,7 +21,7 @@ BMediaConnection::BMediaConnection(media_connection_kinds kinds)
 	CALLED();
 
 	fConnection.kinds = kinds;
-	fConnection.id = 0;
+	fConnection.id = -1;
 	//fConnection.client = media_client::null;
 }