diff --git a/sasldb/db_gdbm.c b/sasldb/db_gdbm.c
--- a/sasldb/db_gdbm.c
+++ b/sasldb/db_gdbm.c
@@ -107,17 +107,19 @@ int _sasldb_getdata(const sasl_utils_t *utils,
   gkey.dptr = key;
   gkey.dsize = key_len;
   gvalue = gdbm_fetch(db, gkey);
+  int fetch_errno = gdbm_errno;
+
   gdbm_close(db);
   if (! gvalue.dptr) {
-      if (gdbm_errno == GDBM_ITEM_NOT_FOUND) {
+      if (fetch_errno == GDBM_ITEM_NOT_FOUND) {
           utils->seterror(conn, SASL_NOLOG,
 			  "user: %s@%s property: %s not found in %s",
 			  authid, realm, propName, path);
 	  result = SASL_NOUSER;
       } else {
 	  utils->seterror(conn, 0,
-			  "Couldn't fetch entry from %s: gdbm_errno=%d",
-			  path, gdbm_errno);
+			  "Couldn't fetch entry from %s: gdbm_errno=%d, authid=%s, realm=%s, propName=%s",
+			  path, fetch_errno, authid, realm, propName);
 	  result = SASL_FAIL;
       }
       goto cleanup;