diff --git a/mbuni/mmlib/mms_mmbox.c b/mbuni/mmlib/mms_mmbox.c
index 2ed5f7e..5765452 100644
--- a/mbuni/mmlib/mms_mmbox.c
+++ b/mbuni/mmlib/mms_mmbox.c
@@ -654,8 +654,8 @@ List *mms_mmbox_search(char *mmbox_root, char *user,
      if ((tmpfd = dup(ifd)) < 0 || 
 	 (fp = fdopen(tmpfd, "r")) == NULL) {
 	  error(0, "mmbox.search_index: %s Failed to dup descriptor for index "
-		"file, fp = %d: error = %s\n", octstr_get_cstr(home), 
-		(int)fp, strerror(errno));	  
+		"file, fp = %p: error = %s\n", octstr_get_cstr(home), 
+		fp, strerror(errno));	  
 	  goto done;
      }
 
@@ -780,8 +780,8 @@ int mms_mmbox_count(char *mmbox_root, char *user,  unsigned long *msgcount, unsi
      if ((tmpfd = dup(ifd)) < 0 || 
 	 (fp = fdopen(tmpfd, "r")) == NULL) {
 	  error(0, "mmbox.count: %s Failed to dup descriptor for index "
-		"file, fp = %d: error = %s\n", octstr_get_cstr(home), 
-		(int)fp, strerror(errno));	  
+		"file, fp = %p: error = %s\n", octstr_get_cstr(home), 
+		fp, strerror(errno));	  
 	  goto done;
      }