diff --git a/writer_test.go b/writer_test.go
index 24333cb..a3efdb1 100644
--- a/writer_test.go
+++ b/writer_test.go
@@ -122,9 +122,10 @@ func TestWriteValidArchive(t *testing.T) {
 			err = f.Close()
 			require.NoError(t, err)
 
-			cmd := exec.Command(tc.ArPath, append(tc.ArArgs, "-x", tmp)...)
-			err = cmd.Run()
-			require.NoError(t, err)
+			out, err := exec.Command(tc.ArPath, append(tc.ArArgs, "-x", tmp)...).CombinedOutput()
+			if !assert.NoError(t, err) {
+				t.Fatalf("%s output:\n%s\n", tc.ArPath, out)
+			}
 
 			for i, fileName := range fileNames {
 				fi, err := os.Stat(fileName)