diff --git a/src/Pomme.cpp b/src/Pomme.cpp
index 350518f..603c5e9 100644
--- a/src/Pomme.cpp
+++ b/src/Pomme.cpp
@@ -45,9 +45,9 @@ void FlushEvents(short, short)
 	TODOMINOR();
 }
 
-void NumToStringC(long theNum, Str255 theString)
+int NumToStringC(long theNum, Str255 theString)
 {
-	snprintf(theString, 256, "%ld", theNum);
+	return snprintf(theString, 256, "%ld", theNum);
 }
 
 //-----------------------------------------------------------------------------
diff --git a/src/Pomme.h b/src/Pomme.h
index 769e3ca..ae940bc 100644
--- a/src/Pomme.h
+++ b/src/Pomme.h
@@ -250,7 +250,7 @@ void SysBeep(short duration);
 
 void FlushEvents(short, short);
 
-void NumToStringC(long theNum, Str255 theString);
+int NumToStringC(long theNum, Str255 theString);
 
 //-----------------------------------------------------------------------------
 // Input