diff --git a/orte/mca/plm/isolated/plm_isolated.c b/orte/mca/plm/isolated/plm_isolated.c
index 211fa11ee75..ac23520e1de 100644
--- a/orte/mca/plm/isolated/plm_isolated.c
+++ b/orte/mca/plm/isolated/plm_isolated.c
@@ -14,7 +14,7 @@
  *                         reserved.
  * Copyright (c) 2008-2009 Sun Microsystems, Inc.  All rights reserved.
  * Copyright (c) 2011      IBM Corporation.  All rights reserved.
- * Copyright (c) 2014-2017 Intel, Inc. All rights reserved.
+ * Copyright (c) 2014-2018 Intel, Inc. All rights reserved.
  * Copyright (c) 2017      Research Organization for Information Science
  *                         and Technology (RIST). All rights reserved.
  * $COPYRIGHT$
@@ -52,7 +52,7 @@
 
 static int isolated_init(void);
 static int isolated_launch(orte_job_t *jdata);
-static int remote_spawn();
+static int remote_spawn(void);
 static int isolated_terminate_orteds(void);
 static int isolated_finalize(void);
 
@@ -95,7 +95,7 @@ static int isolated_init(void)
 /*
  * launch a set of daemons from a remote daemon
  */
-static int remote_spawn()
+static int remote_spawn(void)
 {
     /* unused function in this mode */
     return ORTE_SUCCESS;
diff --git a/orte/mca/plm/rsh/plm_rsh_module.c b/orte/mca/plm/rsh/plm_rsh_module.c
index 9f56be962c8..0881b13e5a1 100644
--- a/orte/mca/plm/rsh/plm_rsh_module.c
+++ b/orte/mca/plm/rsh/plm_rsh_module.c
@@ -14,7 +14,7 @@
  *                         reserved.
  * Copyright (c) 2008-2009 Sun Microsystems, Inc.  All rights reserved.
  * Copyright (c) 2011-2017 IBM Corporation.  All rights reserved.
- * Copyright (c) 2014-2017 Intel, Inc.  All rights reserved.
+ * Copyright (c) 2014-2018 Intel, Inc. All rights reserved.
  * Copyright (c) 2015-2017 Research Organization for Information Science
  *                         and Technology (RIST). All rights reserved.
  * $COPYRIGHT$
@@ -784,7 +784,7 @@ static void ssh_child(int argc, char **argv)
 /*
  * launch a set of daemons from a remote daemon
  */
-static int remote_spawn()
+static int remote_spawn(void)
 {
     int node_name_index1;
     int proc_vpid_index;