diff --git a/src/lib66/ssexec_all.c b/src/lib66/ssexec_all.c
index 8f116ad996f517cf73a6428668f0c7916f32403d..d438512e144ba7fd5b5f001501e0bb3cb96e5533 100644
--- a/src/lib66/ssexec_all.c
+++ b/src/lib66/ssexec_all.c
@@ -31,6 +31,7 @@
 #include <skalibs/types.h>
 #include <skalibs/stralloc.h>
 #include <skalibs/djbunix.h>
+#include <skalibs/posixplz.h>
 
 #include <66/ssexec.h>
 #include <66/constants.h>