diff --git a/packagers/jam.go b/packagers/jam.go
index 698d6b0..fc3a1af 100644
--- a/packagers/jam.go
+++ b/packagers/jam.go
@@ -87,17 +87,40 @@ func (j Jam) Execute(buildpackDir, output, version string, offline bool) error {
 		return err
 	}
 
+	tmpDir, _ := os.MkdirTemp("", "build")
+	if _, err := os.Stat(buildpackTarballPath); err == nil {
+		doUnzip := pexec.NewExecutable("tar")
+		args = []string{
+			"-xvf",
+			buildpackTarballPath,
+		}
+		err = doUnzip.Execute(pexec.Execution{
+			Dir:    tmpDir,
+			Args:   args,
+			Stdout: os.Stdout,
+			Stderr: os.Stderr,
+		})
+		if err != nil {
+			return err
+		}
+
+	}
+
 	args = []string{
 		"buildpack", "package",
 		output,
-		"--path", buildpackTarballPath,
 		"--format", "file",
 		"--target", fmt.Sprintf("linux/%s", runtime.GOARCH),
 	}
 
-	return j.pack.Execute(pexec.Execution{
+	err = j.pack.Execute(pexec.Execution{
+		Dir:    tmpDir,
 		Args:   args,
 		Stdout: os.Stdout,
 		Stderr: os.Stderr,
 	})
+
+	os.RemoveAll(tmpDir)
+
+	return err
 }
diff --git a/packagers/jam_test.go b/packagers/jam_test.go
index 15fe67c..381aeb4 100644
--- a/packagers/jam_test.go
+++ b/packagers/jam_test.go
@@ -53,7 +53,6 @@ func testJam(t *testing.T, context spec.G, it spec.S) {
 			Expect(pack.ExecuteCall.Receives.Execution.Args).To(Equal([]string{
 				"buildpack", "package",
 				"some-output",
-				"--path", filepath.Join("some-jam-output", "some-version.tgz"),
 				"--format", "file",
 				"--target", fmt.Sprintf("linux/%s", runtime.GOARCH),
 			}))
@@ -75,7 +74,6 @@ func testJam(t *testing.T, context spec.G, it spec.S) {
 				Expect(pack.ExecuteCall.Receives.Execution.Args).To(Equal([]string{
 					"buildpack", "package",
 					"some-output",
-					"--path", filepath.Join("some-jam-output", "some-version.tgz"),
 					"--format", "file",
 					"--target", fmt.Sprintf("linux/%s", runtime.GOARCH),
 				}))
@@ -113,7 +111,6 @@ func testJam(t *testing.T, context spec.G, it spec.S) {
 				Expect(pack.ExecuteCall.Receives.Execution.Args).To(Equal([]string{
 					"buildpack", "package",
 					"some-output",
-					"--path", filepath.Join("some-jam-output", "some-version.tgz"),
 					"--format", "file",
 					"--target", fmt.Sprintf("linux/%s", runtime.GOARCH),
 				}))