diff --git a/apps/msk.c b/apps/msk.c
index dcde7b32..b4369c86 100644
--- a/apps/msk.c
+++ b/apps/msk.c
@@ -361,10 +361,9 @@ static int install_package(char * pkg) {
 		}
 
 		char cmd[1024];
-		sprintf(cmd, "cd %s; ungz %s /tmp/%s.tar; tar -xf /tmp/%s.tar; rm /tmp/%s.tar",
+		sprintf(cmd, "cd %s; tar -xzf %s",
 				confreader_get(msk_manifest, pkg, "destination"),
-				confreader_get(msk_manifest, pkg, "source"),
-				pkg, pkg, pkg);
+				confreader_get(msk_manifest, pkg, "source"));
 
 		int status;
 		if ((status = system(cmd))) {