diff --git a/CHANGELOG.md b/CHANGELOG.md
index 58041d7..ae38dde 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+## 0.1.2 / 2018-05-04
+
+* [ENHANCEMENT] Build tag for systemd
+
+## 0.1.1 / 2018-04-19
+
+* [BUGFIX] Non-updating metrics from systemd-journal fix
+
 ## 0.1.0 / 2018-02-23
 
 * [ENHANCEMENT] Initial release, add changelog
diff --git a/README.md b/README.md
index 5deb19a..0737446 100644
--- a/README.md
+++ b/README.md
@@ -32,3 +32,13 @@ Retrieval from the systemd journal is enabled with the `-systemd.enable` flag.
 This overrides the log file setting.
 It is possible to specify the unit (with `-systemd.unit`) or slice (with `-systemd.slice`).
 Additionally, it is possible to read the journal from a directory with the `-systemd.journal_path` flag.
+
+## Build options
+
+Default the exporter is build with systemd journal functionality (but it is disabled at default).
+Because the systemd headers are required for building with systemd, there is
+an option to build the exporter without systemd. Use the build tag `nosystemd`.
+
+```
+go build -tags nosystemd
+```