diff --git a/src/apps/sudoku/SudokuView.cpp b/src/apps/sudoku/SudokuView.cpp
index 7a9064859f..e61e2c515a 100644
--- a/src/apps/sudoku/SudokuView.cpp
+++ b/src/apps/sudoku/SudokuView.cpp
@@ -411,7 +411,7 @@ SudokuView::SaveTo(BDataIO &stream, uint32 as)
 				delete view;
 				bitmap->Unlock();
 			}
-			BMessage msg(B_OK);
+			BMessage msg((uint32)B_OK);
 			status = bitmap->Archive(&msg);
 			if (status >= B_OK) {
 				status = msg.Flatten(&stream);
diff --git a/src/preferences/print/AddPrinterDialog.cpp b/src/preferences/print/AddPrinterDialog.cpp
index 32ab3ea65f..34a1a4c228 100644
--- a/src/preferences/print/AddPrinterDialog.cpp
+++ b/src/preferences/print/AddPrinterDialog.cpp
@@ -233,7 +233,8 @@ AddPrinterDialog::BuildGUI(int stage)
 	transportMenuField->SetDivider(divider);
 	
 	// add a "OK" button, and make it default
-	fOk = new BButton(r, NULL, "Add", new BMessage(B_OK), B_FOLLOW_RIGHT | B_FOLLOW_BOTTOM);
+	fOk = new BButton(r, NULL, "Add", new BMessage((uint32)B_OK),
+		B_FOLLOW_RIGHT | B_FOLLOW_BOTTOM);
 	fOk->ResizeToPreferred();
 	fOk->GetPreferredSize(&w, &h);
 	// put the ok bottom at bottom right corner
diff --git a/src/servers/media_addon/main.cpp b/src/servers/media_addon/main.cpp
index 675c5f0ddf..0ebba00669 100644
--- a/src/servers/media_addon/main.cpp
+++ b/src/servers/media_addon/main.cpp
@@ -689,7 +689,8 @@ MediaAddonServer::MessageReceived(BMessage *msg)
 			}
 
 			PlayMediaFile(type, name);
-			msg->SendReply(B_OK); // XXX don't know which reply is expected
+			msg->SendReply((uint32)B_OK);
+				// XXX don't know which reply is expected
 			return;
 		}