1 files changed, 2 insertions, 1 deletions

diff --git a/plugins-root/check_icmp.c b/plugins-root/check_icmp.c
index 7a23e05a..7e3b00f3 100644
--- a/plugins-root/check_icmp.c
+++ b/plugins-root/check_icmp.c
@@ -395,7 +395,8 @@ main(int argc, char **argv)
         environ = NULL;
 
         /* use the pid to mark packets as ours */
-        pid = getpid();
+        /* Some systems have 32-bit pid_t so mask off only 16 bits */
+        pid = getpid() & 0xffff;
         /* printf("pid = %u\n", pid); */
 
         /* get calling name the old-fashioned way for portability instead