diff --git a/cmd/gogio/androidbuild.go b/cmd/gogio/androidbuild.go
index 435e2637..b6517283 100644
--- a/cmd/gogio/androidbuild.go
+++ b/cmd/gogio/androidbuild.go
@@ -151,6 +151,9 @@ func compileAndroid(tmpDir string, tools *androidTools, bi *buildInfo) (err erro
 		return errors.New("ANDROID_HOME is not set. Please point it to the root of the Android SDK")
 	}
 	javac, err := findJavaC()
+	if err != nil {
+		return fmt.Errorf("could not find javac: %v", err)
+	}
 	ndkRoot := filepath.Join(androidHome, "ndk-bundle")
 	if _, err := os.Stat(ndkRoot); err != nil {
 		return fmt.Errorf("no NDK found in $ANDROID_HOME/ndk-bundle (%s). Use `sdkmanager ndk-bundle` to install it", ndkRoot)
diff --git a/cmd/gogio/main.go b/cmd/gogio/main.go
index e100c10f..8dc92b70 100644
--- a/cmd/gogio/main.go
+++ b/cmd/gogio/main.go
@@ -47,7 +47,7 @@ type buildInfo struct {
 
 func main() {
 	flag.Usage = func() {
-		fmt.Fprintf(os.Stderr, mainUsage)
+		fmt.Fprint(os.Stderr, mainUsage)
 	}
 	flag.Parse()
 	if err := mainErr(); err != nil {