diff --git a/dist/index.js b/dist/index.js
index 760cee0..6cdfd58 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -27771,7 +27771,7 @@ var external_node_path_default = /*#__PURE__*/__nccwpck_require__.n(external_nod
 
 
 function getInputs() {
-    const sourceDir = (0,core.getInput)("source-dir") || ".";
+    const sourceDir = (0,core.getInput)("source-dir");
     return {
         sourceDir,
         buildDir: (0,core.getInput)("build-dir") || external_node_path_default().join(sourceDir, "build"),
diff --git a/src/inputs.test.ts b/src/inputs.test.ts
index e56e4c4..ac127d9 100644
--- a/src/inputs.test.ts
+++ b/src/inputs.test.ts
@@ -150,7 +150,7 @@ describe("get action inputs", () => {
       });
 
       expect(getInputs()).toStrictEqual({
-        sourceDir: ".",
+        sourceDir: "",
         buildDir: "build",
         generator: "",
         cCompiler: "",
diff --git a/src/inputs.ts b/src/inputs.ts
index b15dd3a..e0582a6 100644
--- a/src/inputs.ts
+++ b/src/inputs.ts
@@ -16,7 +16,7 @@ export interface Inputs {
 }
 
 export function getInputs(): Inputs {
-  const sourceDir = getInput("source-dir") || ".";
+  const sourceDir = getInput("source-dir");
   return {
     sourceDir,
     buildDir: getInput("build-dir") || path.join(sourceDir, "build"),