diff --git a/os/Xtranslcl.c b/os/Xtranslcl.c
index ba33bce38..4e79c68d8 100644
--- a/os/Xtranslcl.c
+++ b/os/Xtranslcl.c
@@ -90,9 +90,7 @@ from The Open Group.
  */
 
 #include <sys/socket.h>
-#ifndef X_NO_SYS_UN
 #include <sys/un.h>
-#endif
 
 
 /* Types of local connections supported:
diff --git a/os/Xtranssock.c b/os/Xtranssock.c
index 4c7f80bec..168148a3b 100644
--- a/os/Xtranssock.c
+++ b/os/Xtranssock.c
@@ -89,9 +89,7 @@ from the copyright holders.
 #endif
 
 #ifdef UNIXCONN
-#ifndef X_NO_SYS_UN
 #include <sys/un.h>
-#endif
 #include <sys/stat.h>
 #endif