diff --git a/cachedb/cachedb.c b/cachedb/cachedb.c
index 82d685817..30645268c 100644
--- a/cachedb/cachedb.c
+++ b/cachedb/cachedb.c
@@ -226,6 +226,8 @@ static int
 cachedb_apply_cfg(struct cachedb_env* cachedb_env, struct config_file* cfg)
 {
 	const char* backend_str = cfg->cachedb_backend;
+	if(!backend_str || *backend_str==0)
+		return 1;
 	cachedb_env->backend = cachedb_find_backend(backend_str);
 	if(!cachedb_env->backend) {
 		log_err("cachedb: cannot find backend name '%s'", backend_str);
diff --git a/doc/Changelog b/doc/Changelog
index 15bc43709..eedd58470 100644
--- a/doc/Changelog
+++ b/doc/Changelog
@@ -1,6 +1,8 @@
 21 August 2023: Wouter
 	- Debug Windows ci workflow.
 	- Fix windows ci workflow to install bison and flex.
+	- Fix for #925: unbound.service: Main process exited, code=killed,
+	  status=11/SEGV. Fixes cachedb configuration handling.
 
 18 August 2023: Wouter
 	- Fix for iter_dec_attempts that could cause a hang, part of