diff --git a/src/ipc_listener.cpp b/src/ipc_listener.cpp
index dc41715e..6dc915e0 100644
--- a/src/ipc_listener.cpp
+++ b/src/ipc_listener.cpp
@@ -50,10 +50,12 @@
 #include <fcntl.h>
 #include <sys/un.h>
 
-#if defined ZMQ_HAVE_SO_PEERCRED || defined ZMQ_HAVE_LOCAL_PEERCRED
+#ifdef ZMQ_HAVE_LOCAL_PEERCRED
 #   include <sys/types.h>
+#   include <sys/ucred.h>
 #endif
 #ifdef ZMQ_HAVE_SO_PEERCRED
+#   include <sys/types.h>
 #   include <pwd.h>
 #   include <grp.h>
 #   if defined ZMQ_HAVE_OPENBSD
diff --git a/src/options.hpp b/src/options.hpp
index 8d132dda..118b281e 100644
--- a/src/options.hpp
+++ b/src/options.hpp
@@ -42,6 +42,9 @@
 #if defined ZMQ_HAVE_SO_PEERCRED || defined ZMQ_HAVE_LOCAL_PEERCRED
 #include <sys/types.h>
 #endif
+#ifdef ZMQ_HAVE_LOCAL_PEERCRED
+#include <sys/ucred.h>
+#endif
 
 //  Normal base 256 key is 32 bytes
 #define CURVE_KEYSIZE       32