diff --git a/src/packerfile-gcp.mk b/src/packerfile-gcp.mk
index 3ec5a60..de5742c 100644
--- a/src/packerfile-gcp.mk
+++ b/src/packerfile-gcp.mk
@@ -52,7 +52,7 @@ define OPACK_PACKER_CLOUD_CONTENT =
     			},
 	                {
                         "type": "shell",
-                        "inline": ["cp /root/.ssh/authorized_keys /home/opack/.ssh/authorized_keys; chown opack /home/opack/.ssh/authorized_keys"]
+			"inline": ["cp /root/.ssh/authorized_keys /home/$(OPACK_SYS_USER)/.ssh/authorized_keys; chown $(OPACK_SYS_USER) /home/$(OPACK_SYS_USER)/.ssh/authorized_keys"]
 	                }
 		],
 		"post-processors": [ [
diff --git a/src/packerfile.mk b/src/packerfile.mk
index 6d3ea46..9794f9c 100644
--- a/src/packerfile.mk
+++ b/src/packerfile.mk
@@ -48,7 +48,7 @@ define OPACK_PACKER_CONTENT =
     		},
 		{
 			"type": "shell",
-			"inline": ["cp /root/.ssh/authorized_keys /home/opack/.ssh/authorized_keys; chown opack /home/opack/.ssh/authorized_keys"]
+			"inline": ["cp /root/.ssh/authorized_keys /home/$(OPACK_SYS_USER)/.ssh/authorized_keys; chown $(OPACK_SYS_USER) /home/$(OPACK_SYS_USER)/.ssh/authorized_keys"]
     		}
 		],
 		"post-processors": [ [