diff --git a/cli/cli_test.go b/cli/cli_test.go
new file mode 100644
index 0000000..2a965d0
--- /dev/null
+++ b/cli/cli_test.go
@@ -0,0 +1,89 @@
+package cli
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"runtime"
+	"testing"
+
+	"github.com/handlename/awsc/internal/env"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_determineConfigPath(t *testing.T) {
+	homedir := os.Getenv("HOME")
+	defer os.Setenv("HOME", homedir)
+
+	resetEnvs := func() error {
+		envs := []string{
+			"HOME",
+			env.EnvConfigPath,
+			env.EnvDefaultConfigDir,
+		}
+
+		for _, e := range envs {
+			if err := os.Unsetenv(e); err != nil {
+				return err
+			}
+		}
+
+		return nil
+	}
+
+	_, filename, _, ok := runtime.Caller(0)
+	require.True(t, ok)
+	testdataRoot := filepath.Join(filepath.Dir(filename), "testdata", "cli_determine_config_path")
+
+	tests := []struct {
+		name    string
+		env     map[string]string
+		want    string
+		wantErr bool
+		errBody string
+	}{
+		{
+			name: "no envs",
+			env: map[string]string{
+				"HOME": filepath.Join(testdataRoot, "home0"),
+			},
+			want: "",
+		},
+		{
+			name: fmt.Sprintf("set %s", env.EnvConfigPath),
+			env: map[string]string{
+				env.EnvConfigPath: filepath.Join(testdataRoot, "specific", "config.toml"),
+			},
+			want: filepath.Join(testdataRoot, "specific", "config.toml"),
+		},
+		{
+			name: "exists ~/.config/awsc/config.yaml",
+			env: map[string]string{
+				"HOME": filepath.Join(testdataRoot, "home1"),
+			},
+			want: filepath.Join(testdataRoot, "home1", ".config", "awsc", "config.yaml"),
+		},
+		{
+			name: "exists ~/.awsc/config.yaml",
+			env: map[string]string{
+				"HOME": filepath.Join(testdataRoot, "home2"),
+			},
+			want: filepath.Join(testdataRoot, "home2", ".awsc", "config.yaml"),
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			require.NoError(t, resetEnvs())
+
+			for k, v := range tt.env {
+				os.Setenv(k, v)
+			}
+
+			path, err := determineConigPath()
+			require.NoError(t, err)
+			assert.Equal(t, tt.want, path)
+		})
+	}
+}
diff --git a/cli/testdata/cli_determine_config_path/home0/.gitkeep b/cli/testdata/cli_determine_config_path/home0/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/cli/testdata/cli_determine_config_path/home1/.config/awsc/config.yaml b/cli/testdata/cli_determine_config_path/home1/.config/awsc/config.yaml
new file mode 100644
index 0000000..e69de29
diff --git a/cli/testdata/cli_determine_config_path/home2/.awsc/config.yaml b/cli/testdata/cli_determine_config_path/home2/.awsc/config.yaml
new file mode 100644
index 0000000..e69de29
diff --git a/cli/testdata/cli_determine_config_path/xdg_home/awsc/config.yaml b/cli/testdata/cli_determine_config_path/xdg_home/awsc/config.yaml
new file mode 100644
index 0000000..e69de29
diff --git a/internal/env/env.go b/internal/env/env.go
index be56cb0..8db0e8d 100644
--- a/internal/env/env.go
+++ b/internal/env/env.go
@@ -5,5 +5,5 @@ const (
 	EnvLogLevel         = EnvPrefix + "_LOG_LEVEL"
 	EnvConfigPath       = EnvPrefix + "_CONFIG_PATH"
 	EnvShowVersion      = EnvPrefix + "_SHOW_VERSION"
-	EnvDefaultConfigDir = "XDG_CONFIG_PATH"
+	EnvDefaultConfigDir = "XDG_CONFIG_HOME"
 )