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-rw-r--r--lib/erl_interface/src/prog/erl_call.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/erl_interface/src/prog/erl_call.c b/lib/erl_interface/src/prog/erl_call.c
index d233ed26a2..0b09d412db 100644
--- a/lib/erl_interface/src/prog/erl_call.c
+++ b/lib/erl_interface/src/prog/erl_call.c
@@ -325,7 +325,8 @@ int erl_call(int argc, char **argv)
initWinSock();
#endif
- if (gethostname(h_hostname, EI_MAXHOSTNAMELEN) < 0) {
+ /* gethostname requires len to be max(hostname) + 1 */
+ if (gethostname(h_hostname, EI_MAXHOSTNAMELEN+1) < 0) {
fprintf(stderr,"erl_call: failed to get host name: %d\n", errno);
exit(1);
}