diff --git a/meson.build b/meson.build
index 3297746..761c6ee 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('valdo', 'vala', 'c',
-  version: '0.0.1',
+  version: '2021.07.22',
   license: 'LGPL-2.1-only')
 
 valac = meson.get_compiler('vala')
diff --git a/src/config.vala.in.in b/src/config.vala.in
similarity index 100%
rename from src/config.vala.in.in
rename to src/config.vala.in
diff --git a/src/main.vala b/src/main.vala
index 7853f33..4fd3516 100644
--- a/src/main.vala
+++ b/src/main.vala
@@ -19,7 +19,10 @@
 [CCode (array_length = false, array_null_terminated = true)]
 private string[] template_names;    // we only want one template, and we discard the rest
 
+private bool version;
+
 private const OptionEntry[] entries = {
+    { "version", 'V', 0, OptionArg.NONE, ref version, "Output version", null },
     { OPTION_REMAINING, 0, 0, OptionArg.STRING_ARRAY, ref template_names, (string)0, "TEMPLATE" },
     // list terminator (we can't use `null` here, see https://gitlab.gnome.org/GNOME/vala/-/issues/1185)
     { }
@@ -81,9 +84,16 @@ int main (string[] args) {
         return 1;
     }
 
+    if (version) {
+        stdout.printf ("valdo %s\n", Config.PROJECT_VERSION);
+        return 0;
+    }
+
     if (template_names.length == 0) {
         return list_templates (args);
-    } else if (template_names.length != 1) {
+    }
+
+    if (template_names.length != 1) {
         stderr.printf ("%s", ctx.get_help (false, null));
         return 1;
     }
diff --git a/src/meson.build b/src/meson.build
index 644d3bf..f716c7e 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -2,18 +2,20 @@ conf_data = configuration_data()
 conf_data.set('DATA_DIR', templates_dir)
 conf_data.set('VCS_TAG', '@VCS_TAG@')
 
-config_vala_in = configure_file(
-  input: 'config.vala.in.in',
-  output: 'config.vala.in',
+config_vala = configure_file(
+  input: 'config.vala.in',
+  output: 'config.vala',
   configuration: conf_data
 )
-config_vala = vcs_tag(
-  input: config_vala_in,
-  output: 'config.vala',
+version_vala = vcs_tag(
+  input: 'version.vala.in',
+  output: 'version.vala',
+  command: ['git', 'describe', '--tags', '--dirty']
 )
 
 executable('valdo',
   config_vala,
+  version_vala,
   'main.vala',
   'template.vala',
   'templateengine.vala',
diff --git a/src/version.vala.in b/src/version.vala.in
new file mode 100644
index 0000000..513ebd0
--- /dev/null
+++ b/src/version.vala.in
@@ -0,0 +1,3 @@
+namespace Config {
+    const string PROJECT_VERSION = "@VCS_TAG@";
+}