diff --git a/CHANGES b/CHANGES
index 9e06b3264f..12d7074106 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+2152.	[cleanup]	Use sizeof(buf) instead of fixed number in
+			dighost.c:get_trusted_key(). [RT #16678]
+
 2151.	[bug]		Missing newline in usage message for journalprint.
 			[RT #16679]
 
diff --git a/bin/dig/dighost.c b/bin/dig/dighost.c
index b2139495cf..5219f5ec0f 100644
--- a/bin/dig/dighost.c
+++ b/bin/dig/dighost.c
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: dighost.c,v 1.300 2007/02/26 00:27:09 marka Exp $ */
+/* $Id: dighost.c,v 1.301 2007/02/27 00:58:08 marka Exp $ */
 
 /*! \file
  *  \note
@@ -3892,7 +3892,7 @@ get_trusted_key(isc_mem_t *mctx)
 		       filename);
 		return (ISC_R_FAILURE);
 	}
-	while (fgets(buf, 1500, fp) != NULL) {
+	while (fgets(buf, sizeof(buf), fp) != NULL) {
 		result = opentmpkey(mctx,"tmp_file", &filetemp, &fptemp);
 		if (result != ISC_R_SUCCESS) {
 			fclose(fp);