diff --git a/src/LayerCache.ts b/src/LayerCache.ts
index e01d7fe3..fe9b0ed0 100644
--- a/src/LayerCache.ts
+++ b/src/LayerCache.ts
@@ -144,7 +144,7 @@ class LayerCache {
   }
 
   private async loadImageFromUnpacked() {
-    await exec.exec(`sh -c`, [`tar cf - '${this.getUnpackedTarDir()}' | docker load`])
+    await exec.exec(`sh -c`, [`tar cf - . | docker load`], { cwd: this.getUnpackedTarDir() })
   }
 
   async cleanUp() {