diff --git a/src/apps/workspaces/Workspaces.cpp b/src/apps/workspaces/Workspaces.cpp
index 84d0727a49..080a4f40e2 100644
--- a/src/apps/workspaces/Workspaces.cpp
+++ b/src/apps/workspaces/Workspaces.cpp
@@ -41,6 +41,7 @@
 
 
 static const char* kSignature = "application/x-vnd.Be-WORK";
+static const char* kScreenPrefletSignature = "application/x-vnd.Haiku-Screen";
 static const char* kOldSettingFile = "Workspace_data";
 static const char* kSettingsFile = "Workspaces_settings";
 
@@ -494,7 +495,7 @@ WorkspacesView::MessageReceived(BMessage* message)
 			break;
 
 		case kMsgChangeCount:
-			be_roster->Launch("application/x-vnd.Be-SCRN");
+			be_roster->Launch(kScreenPrefletSignature);
 			break;
 
 		default:
diff --git a/src/preferences/screen/Jamfile b/src/preferences/screen/Jamfile
index 80cb84804a..c52bc7f8d9 100644
--- a/src/preferences/screen/Jamfile
+++ b/src/preferences/screen/Jamfile
@@ -30,7 +30,7 @@ if $(TARGET_PLATFORM) = libbe_test {
 }
 
 DoCatalogs Screen :
-	x-vnd.Be-SCRN
+	x-vnd.Haiku-Screen
 	:
 	AlertView.cpp
 	AlertWindow.cpp
diff --git a/src/preferences/screen/Screen.rdef b/src/preferences/screen/Screen.rdef
index 566bf66b1b..23de73b3ce 100644
--- a/src/preferences/screen/Screen.rdef
+++ b/src/preferences/screen/Screen.rdef
@@ -1,5 +1,5 @@
 
-resource app_signature "application/x-vnd.Be-SCRN";
+resource app_signature "application/x-vnd.Haiku-Screen";
 
 resource app_flags B_SINGLE_LAUNCH;
 
diff --git a/src/preferences/screen/ScreenApplication.cpp b/src/preferences/screen/ScreenApplication.cpp
index 2782487578..c4f4e4bed3 100644
--- a/src/preferences/screen/ScreenApplication.cpp
+++ b/src/preferences/screen/ScreenApplication.cpp
@@ -23,7 +23,7 @@
 #define B_TRANSLATE_CONTEXT "Screen"
 
 
-static const char* kAppSignature = "application/x-vnd.Be-SCRN";
+static const char* kAppSignature = "application/x-vnd.Haiku-Screen";
 
 
 ScreenApplication::ScreenApplication()