diff --git a/src/login.c b/src/login.c
index 7ec2401e..5fbbc614 100644
--- a/src/login.c
+++ b/src/login.c
@@ -1288,6 +1288,7 @@ int main (int argc, char **argv)
 			env++;
 		}
 	}
+	(void) pam_end (pamh, PAM_SUCCESS | PAM_DATA_SILENT);
 #endif
 
 	(void) setlocale (LC_ALL, "");
diff --git a/src/su.c b/src/su.c
index 04011afa..55ca80d2 100644
--- a/src/su.c
+++ b/src/su.c
@@ -1156,12 +1156,9 @@ int main (int argc, char **argv)
 		}
 	}
 
-	/*
-	 * PAM_DATA_SILENT is not supported by some modules, and
-	 * there is no strong need to clean up the process space's
-	 * memory since we will either call exec or exit.
-	pam_end (pamh, PAM_SUCCESS | PAM_DATA_SILENT);
-	 */
+#ifdef USE_PAM
+	(void) pam_end (pamh, PAM_SUCCESS | PAM_DATA_SILENT);
+#endif
 
 	endpwent ();
 	endspent ();