diff --git a/CHANGELOG.md b/CHANGELOG.md
index 430a725..25a52e1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ How to release a new version:
 - Manually release new version.
 
 ## [Unreleased]
+### Added
+- Use `debug.ReadBuildInfo` to get correct version.
+- Print to stderr on error.
+
 ### Removed
 - `openapi compose`, `repo init`, `repo template` commands.
 
diff --git a/cmd/tea/gen_id.go b/cmd/tea/gen_id.go
index 99e3d81..9a3b5c4 100644
--- a/cmd/tea/gen_id.go
+++ b/cmd/tea/gen_id.go
@@ -2,7 +2,6 @@ package main
 
 import (
 	"bytes"
-	"errors"
 	"fmt"
 	"go/ast"
 	"go/parser"
@@ -38,14 +37,8 @@ Example:
 		RefreshToken uint64
 	)
  `,
-		Run: func(cmd *cobra.Command, args []string) {
-			if err := runGenerateIDs(genIDOptions.SourceFilePath, genIDOptions.OutputFilePath); err != nil {
-				e := &cmderrors.CommandError{}
-				if errors.As(err, &e) {
-					os.Exit(e.Code)
-				}
-				os.Exit(-1)
-			}
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return runGenerateIDs(genIDOptions.SourceFilePath, genIDOptions.OutputFilePath)
 		},
 	}
 
diff --git a/cmd/tea/main.go b/cmd/tea/main.go
index 5535f55..363fe3f 100644
--- a/cmd/tea/main.go
+++ b/cmd/tea/main.go
@@ -1,12 +1,20 @@
 package main
 
-import "os"
+import (
+	"errors"
+	"os"
+
+	cmderrors "go.strv.io/tea/pkg/errors"
+)
 
 func main() {
 	// Execute adds all child commands to the root command and sets flags appropriately.
 	// This is called by main.main(). It only needs to happen once to the rootCmd.
 	if err := rootCmd.Execute(); err != nil {
-		// TODO: Log the error.
+		e := &cmderrors.CommandError{}
+		if errors.As(err, &e) {
+			os.Exit(e.Code)
+		}
 		os.Exit(1)
 	}
 }
diff --git a/cmd/tea/version.go b/cmd/tea/version.go
index c690737..f26a990 100644
--- a/cmd/tea/version.go
+++ b/cmd/tea/version.go
@@ -2,12 +2,11 @@ package main
 
 import (
 	"fmt"
+	"runtime/debug"
 
 	"github.com/spf13/cobra"
 )
 
-var version = "0.0.0" // version is set during build
-
 var (
 	versionCmd = &cobra.Command{
 		Use:   "version",
@@ -19,6 +18,11 @@ Example:
 
 Provided by ` + colorLinkSTRV,
 		Run: func(cmd *cobra.Command, args []string) {
+			version := "unknown"
+			buildInfo, ok := debug.ReadBuildInfo()
+			if ok {
+				version = buildInfo.Main.Version
+			}
 			_, _ = fmt.Println(version)
 		},
 	}