diff --git a/src/env/putenv.c b/src/env/putenv.c
index 4042869b500f1866e111918f121ba3d08d962287..7153042669da81a80bff37a3c25aeb1618a64da9 100644
--- a/src/env/putenv.c
+++ b/src/env/putenv.c
@@ -30,6 +30,7 @@ int __putenv(char *s, int a)
 				}
 			} else {
 				free(__env_map[j]);
+				__env_map[j] = s;
 			}
 		}
 	}