diff --git a/c/metalio.c b/c/metalio.c
index 8cc0bca75..9b6c45edf 100644
--- a/c/metalio.c
+++ b/c/metalio.c
@@ -379,7 +379,7 @@ SYSOUT *getSYSOUTStruct(char *ddname, SYSOUT *existingSysout, char *buffer){
 */
 void message(char *message){
 
-  message2(message);
+  wtoMessage(message);
 }
 
 /* this can only be called from authorized callers */
diff --git a/c/zos.c b/c/zos.c
index 74923d87f..2a5879198 100644
--- a/c/zos.c
+++ b/c/zos.c
@@ -1471,7 +1471,7 @@ int safStat(int options, char *safClass, char *copy, int copyLength, int *racfSt
 
 /* begin WTO SECTION */
 
-void message2(char *message){
+void wtoMessage(const char *message){
 
   ALLOC_STRUCT31(
     STRUCT31_NAME(below2G),
@@ -1500,7 +1500,7 @@ void message2(char *message){
 }
 
 #define WTO_MAX_SIZE 126
-void wtoPrintf3(char *formatString, ...) {
+void wtoPrintf3(const char *formatString, ...) {
   char text[WTO_MAX_SIZE+1];       /* Allow for trailing null character */
   va_list argPointer;
   int cnt;
@@ -1537,7 +1537,7 @@ void wtoPrintf3(char *formatString, ...) {
   if (cnt>0 && text[cnt-1] == '\n')   /* If text ends with \n */
     text[cnt-1] = 0;                  /* Change it into a null character */
 
-  message2(text);
+  wtoMessage(text);
 }
 
 /* end WTO SECTION */
diff --git a/h/zos.h b/h/zos.h
index 2e9a30f67..1daba3f21 100644
--- a/h/zos.h
+++ b/h/zos.h
@@ -1536,9 +1536,9 @@ DSAB *getDSAB(char *ddname);
 
 int dsabIsOMVS(DSAB *dsab);
 
-void message2(char *message);
+void wtoMessage(const char *message);
 
-void wtoPrintf3(char *formatString, ...);
+void wtoPrintf3(const char *formatString, ...);
 
 int locate(char *dsn, int *volserCount, char *firstVolser);