diff --git a/neo/d3xp/script/Script_Compiler.cpp b/neo/d3xp/script/Script_Compiler.cpp
index 183c9dd..48af6e0 100644
--- a/neo/d3xp/script/Script_Compiler.cpp
+++ b/neo/d3xp/script/Script_Compiler.cpp
@@ -38,7 +38,7 @@ If you have questions concerning this license or the applicable additional terms
 #define TOP_PRIORITY		7
 
 bool idCompiler::punctuationValid[ 256 ];
-char *idCompiler::punctuation[] = {
+const char *idCompiler::punctuation[] = {
 	"+=", "-=", "*=", "/=", "%=", "&=", "|=", "++", "--",
 	"&&", "||", "<=", ">=", "==", "!=", "::", ";",  ",",
 	"~",  "!",  "*",  "/",  "%",  "(",   ")",  "-", "+",
diff --git a/neo/d3xp/script/Script_Compiler.h b/neo/d3xp/script/Script_Compiler.h
index 51b5918..5a62ddc 100644
--- a/neo/d3xp/script/Script_Compiler.h
+++ b/neo/d3xp/script/Script_Compiler.h
@@ -31,8 +31,8 @@ If you have questions concerning this license or the applicable additional terms
 const char * const RESULT_STRING = "<RESULT>";
 
 typedef struct opcode_s {
-	char		*name;
-	char		*opname;
+	const char	*name;
+	const char	*opname;
 	int			priority;
 	bool		rightAssociative;
 	idVarDef	*type_a;
@@ -197,7 +197,7 @@ enum {
 class idCompiler {
 private:
 	static bool		punctuationValid[ 256 ];
-	static char		*punctuation[];
+	static const char	*punctuation[];
 
 	idParser		parser;
 	idParser		*parserPtr;