diff --git a/CHANGELOG.md b/CHANGELOG.md
index 53f6b06..520b83e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [unreleased]
+### Added
+- Basecaller summary information similar to runid summary.
+### Fixed
+- Random output for runid when not found in header.
+
 ## [v0.17.1]
 ### Added
 - `--runids` option to `bamstats` for enumerating detected run identifiers.
diff --git a/src/bamstats/readstats.c b/src/bamstats/readstats.c
index 83290d6..2df0cbc 100644
--- a/src/bamstats/readstats.c
+++ b/src/bamstats/readstats.c
@@ -207,6 +207,7 @@ void process_bams(
         // get info from readgroup, note we could use subitems from readgroup
         // here more directly, but this is to be consistent with fastcat where
         // we only have the readgroup ID string to play with
+        runid = "";
         tag = bam_get_tag_caseinsensitive((const bam1_t*) b, "RG");
         if (tag != NULL) {
             rg_info = create_rg_info(bam_aux2Z(tag));