diff --git a/src/Cafe/OS/libs/coreinit/coreinit_MCP.cpp b/src/Cafe/OS/libs/coreinit/coreinit_MCP.cpp
index 2d08fab5..dd86e5ec 100644
--- a/src/Cafe/OS/libs/coreinit/coreinit_MCP.cpp
+++ b/src/Cafe/OS/libs/coreinit/coreinit_MCP.cpp
@@ -421,7 +421,7 @@ namespace coreinit
 		return 0;
 	}
 
-	uint32 MCP_DemoLaunchGetRemainder(MCPHANDLE mcpHandle, uint32 ukn_r4, uint32 inputA, uint32 inputB, uint32be* outRemainder)
+	uint32 MCP_DemoLaunchGetRemainder(uint32 mcpHandle, uint32 ukn_r4, uint32 titleId_high, uint32 titleId_low, uint32be* outRemainder)
 	{
 		// stub to always return 99 uses remaining for game demos.
 		// used by drmapp.rpl to determine remaining uses for game demos