diff --git a/utils/path.c b/utils/path.c
index 35df93ae..e42f96d0 100644
--- a/utils/path.c
+++ b/utils/path.c
@@ -1095,8 +1095,8 @@ const char *newWD;		/* New working directory to be used.  Must
 
 int
 PaEnum(path, file, proc, cdata)
-    char *path;		/* Search path */
-    char *file;		/* Each element of the search path is prepended to
+    const char *path;		/* Search path */
+    const char *file;	/* Each element of the search path is prepended to
 			 * this file name and passed to the client.
 			 */
     int (*proc)();	/* Client procedure */
diff --git a/utils/utils.h b/utils/utils.h
index 68fa63f2..90b7b176 100644
--- a/utils/utils.h
+++ b/utils/utils.h
@@ -70,7 +70,7 @@ extern void niceabort();
 extern void ShowRect();
 extern void FindDisplay();
 extern void ForkChildAdd();
-extern int  PaEnum();
+extern int  PaEnum(const char *path, const char *file, int (*proc)(), ClientData cdata);
 extern int  paVisitProcess();
 extern void SetNoisyInt();
 extern void SetNoisyDI();