diff --git a/orte/mca/grpcomm/pmi/pmi2_pmap_parser.c b/orte/mca/grpcomm/pmi/pmi2_pmap_parser.c
index 3a42185373..5a3d3c071e 100644
--- a/orte/mca/grpcomm/pmi/pmi2_pmap_parser.c
+++ b/orte/mca/grpcomm/pmi/pmi2_pmap_parser.c
@@ -132,7 +132,8 @@ static int *find_lrs(char *map, int my_node, int *nlrs)
  * @return array that contains ranks local to my_rank or NULL
  * on failure. Array must be freed by the caller. 
  */ 
-int *pmi2_parse_pmap(char *pmap, int my_rank, int *node, int *nlrs)
+static int *pmi2_parse_pmap(char *pmap, int my_rank,
+                            int *node, int *nlrs)
 {
     char *p;