diff --git a/src/common/utility/cmdlib.cpp b/src/common/utility/cmdlib.cpp
index 02ab1895911..a3b2ef4f5d1 100644
--- a/src/common/utility/cmdlib.cpp
+++ b/src/common/utility/cmdlib.cpp
@@ -122,25 +122,6 @@ char *copystring (const char *s)
 	return b;
 }
 
-//==========================================================================
-//
-// ReplaceString
-//
-// Do not use in new code.
-//
-//==========================================================================
-
-void ReplaceString (char **ptr, const char *str)
-{
-	if (*ptr)
-	{
-		if (*ptr == str)
-			return;
-		delete[] *ptr;
-	}
-	*ptr = copystring (str);
-}
-
 /*
 =============================================================================
 
diff --git a/src/common/utility/cmdlib.h b/src/common/utility/cmdlib.h
index 392d0f46db4..b319056e8be 100644
--- a/src/common/utility/cmdlib.h
+++ b/src/common/utility/cmdlib.h
@@ -54,7 +54,6 @@ struct FScriptPosition;
 bool	IsNum (const char *str);		// [RH] added
 
 char	*copystring(const char *s);
-void	ReplaceString (char **ptr, const char *str);
 
 bool CheckWildcards (const char *pattern, const char *text);