diff --git a/src/FakeCallbacks.c b/src/FakeCallbacks.c
index 39be677..374ae40 100644
--- a/src/FakeCallbacks.c
+++ b/src/FakeCallbacks.c
@@ -25,8 +25,8 @@ static void fakeClStageComplete(int stage) {}
 static void fakeClStageFailed(int stage, long errorCode) {}
 static void fakeClConnectionStarted(void) {}
 static void fakeClConnectionTerminated(long errorCode) {}
-static void fakeClDisplayMessage(char* message) {}
-static void fakeClDisplayTransientMessage(char* message) {}
+static void fakeClDisplayMessage(const char* message) {}
+static void fakeClDisplayTransientMessage(const char* message) {}
 
 static CONNECTION_LISTENER_CALLBACKS fakeClCallbacks = {
     .stageStarting = fakeClStageStarting,
@@ -97,4 +97,4 @@ void fixupMissingCallbacks(PDECODER_RENDERER_CALLBACKS* drCallbacks, PAUDIO_REND
             (*clCallbacks)->displayTransientMessage = fakeClDisplayTransientMessage;
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/Limelight.h b/src/Limelight.h
index 6d5ba45..52fdd97 100644
--- a/src/Limelight.h
+++ b/src/Limelight.h
@@ -195,11 +195,11 @@ typedef void(*ConnListenerConnectionStarted)(void);
 typedef void(*ConnListenerConnectionTerminated)(long errorCode);
 
 // This callback is invoked to display a dialog-type message to the user
-typedef void(*ConnListenerDisplayMessage)(char* message);
+typedef void(*ConnListenerDisplayMessage)(const char* message);
 
 // This callback is invoked to display a transient message for the user
 // while streaming
-typedef void(*ConnListenerDisplayTransientMessage)(char* message);
+typedef void(*ConnListenerDisplayTransientMessage)(const char* message);
 
 typedef struct _CONNECTION_LISTENER_CALLBACKS {
     ConnListenerStageStarting stageStarting;