diff --git a/internal/crypt/crypt_impl.go b/internal/crypt/crypt_impl.go
index 088cf4462..89d0462d9 100644
--- a/internal/crypt/crypt_impl.go
+++ b/internal/crypt/crypt_impl.go
@@ -1,3 +1,5 @@
+// +build !macos
+
 // Copied from https://github.com/amoghe/go-crypt/blob/b3e291286513a0c993f7c4dd7060d327d2d56143/crypt_r.go
 // Original sources are under MIT license:
 // The MIT License (MIT)
diff --git a/internal/crypt/crypt_impl_macos.go b/internal/crypt/crypt_impl_macos.go
new file mode 100644
index 000000000..82b7802dd
--- /dev/null
+++ b/internal/crypt/crypt_impl_macos.go
@@ -0,0 +1,8 @@
+// +build macos
+
+package crypt
+
+func crypt(pass, salt string) (string, error) {
+	panic("You must not run osbuild-composer on macOS!")
+	return "", nil
+}