diff --git a/structs.h b/structs.h
index 3e37fc907..dbcc3ab2e 100644
--- a/structs.h
+++ b/structs.h
@@ -1428,10 +1428,10 @@ typedef struct _SNETUIDATA {
 
 typedef struct _SNETVERSIONDATA {
 	int size;
-	char *versionstring;
-	char *executablefile;
-	char *originalarchivefile;
-	char *patcharchivefile;
+	const char *versionstring;
+	const char *executablefile;
+	const char *originalarchivefile;
+	const char *patcharchivefile;
 } _SNETVERSIONDATA;
 
 // TPDEF PTR FCN UCHAR SNETSPIBIND