diff --git a/src/configuration.ts b/src/configuration.ts
index ae82465c..52a81377 100644
--- a/src/configuration.ts
+++ b/src/configuration.ts
@@ -4,6 +4,7 @@ const execa = require("execa");
 const hostedGitInfo = require("hosted-git-info");
 
 import ConfigurationError from "./configuration-error";
+import { getRootPath } from "./git";
 
 export interface Configuration {
   repo: string;
@@ -20,9 +21,7 @@ export interface ConfigLoaderOptions {
 }
 
 export function load(options: ConfigLoaderOptions = {}): Configuration {
-  let cwd = process.cwd();
-  let rootPath = execa.sync("git", ["rev-parse", "--show-toplevel"], { cwd }).stdout;
-
+  let rootPath = getRootPath();
   return fromPath(rootPath, options);
 }
 
diff --git a/src/git.ts b/src/git.ts
index 0be7c7f7..bdaa4fe0 100644
--- a/src/git.ts
+++ b/src/git.ts
@@ -1,5 +1,10 @@
 const execa = require("execa");
 
+export function getRootPath() {
+  const cwd = process.cwd();
+  return execa.sync("git", ["rev-parse", "--show-toplevel"], { cwd }).stdout;
+}
+
 export async function changedPaths(sha: string): Promise<string[]> {
   const result = await execa("git", ["show", "-m", "--name-only", "--pretty=format:", "--first-parent", sha]);
   return result.stdout.split("\n");