diff --git a/CHANGES b/CHANGES
index fa27620c81..eab0e8d123 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,5 @@
+1691.	[bug]		sdb's attachversion was not complete. [RT #11990]
+
 1690.	[placeholder]	rt11714
 
 1689.	[bug]		DNS_NAME_TOREGION() and DNS_NAME_SPLIT() macros
diff --git a/lib/dns/sdb.c b/lib/dns/sdb.c
index 8b9b446ba6..486874788f 100644
--- a/lib/dns/sdb.c
+++ b/lib/dns/sdb.c
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: sdb.c,v 1.45 2004/03/05 05:09:24 marka Exp $ */
+/* $Id: sdb.c,v 1.46 2004/07/22 03:58:07 marka Exp $ */
 
 #include <config.h>
 
@@ -629,10 +629,10 @@ attachversion(dns_db_t *db, dns_dbversion_t *source,
 	      dns_dbversion_t **targetp)
 {
 	REQUIRE(source != NULL && source == (void *) &dummy);
+	REQUIRE(targetp != NULL && *targetp == NULL);
 
 	UNUSED(db);
-	UNUSED(source);
-	UNUSED(targetp);
+	*targetp = source;
 	return;
 }