diff --git a/index.js b/index.js
index 58f330b..557e33b 100644
--- a/index.js
+++ b/index.js
@@ -47,6 +47,7 @@ class RustPlugin {
         dockerTag: DEFAULT_DOCKER_TAG,
         dockerImage: DEFAULT_DOCKER_IMAGE,
         dockerless: false,
+        inWorkspace: false,
       },
       (this.serverless.service.custom && this.serverless.service.custom.rust) ||
         {}
@@ -167,7 +168,7 @@ class RustPlugin {
     const zip = new AdmZip();
     zip.addFile(
       "bootstrap",
-      readFileSync(path.join(sourceDir, binary)),
+      readFileSync(path.join(this.custom.inWorkspace ? '..' : '', sourceDir, binary)),
       "",
       0o755
     );
diff --git a/tests/unit/index.test.js b/tests/unit/index.test.js
index 28714cd..38200bb 100644
--- a/tests/unit/index.test.js
+++ b/tests/unit/index.test.js
@@ -40,6 +40,7 @@ describe("RustPlugin", () => {
       dockerImage: "softprops/lambda-rust",
       dockerTag: "latest",
       dockerless: false,
+      inWorkspace: false
     });
   });
 
@@ -54,6 +55,7 @@ describe("RustPlugin", () => {
               dockerImage: "notsoftprops/lambda-rust",
               dockerTag: "custom-tag",
               dockerless: true,
+              inWorkspace: false
             },
           },
           package: {},
@@ -67,6 +69,7 @@ describe("RustPlugin", () => {
       dockerImage: "notsoftprops/lambda-rust",
       dockerTag: "custom-tag",
       dockerless: true,
+      inWorkspace: false
     });
   });