diff --git a/toolbox/os.cpp b/toolbox/os.cpp
index d07aef1..4fccaf2 100644
--- a/toolbox/os.cpp
+++ b/toolbox/os.cpp
@@ -298,7 +298,7 @@ namespace OS
 
 		bool rf = trap == 0xa00a;
 
-		const char *modifier = nullptr;
+		const char *modifier = "";
 		switch(trap)
 		{
 			case 0xa00a: