diff --git a/display.c b/display.c
index 1ac864c..164527f 100644
--- a/display.c
+++ b/display.c
@@ -20,6 +20,7 @@
 #include "estruct.h"
 #include "edef.h"
 #include "line.h"
+#include "termio.h"
 #include "version.h"
 #include "wrapper.h"
 #include "utf8.h"
diff --git a/efunc.h b/efunc.h
index 12badbf..f47bfd4 100644
--- a/efunc.h
+++ b/efunc.h
@@ -17,11 +17,6 @@
 #if	BSD | SVR4
 /* lock.c */
 #include "lock.h"
-
-#if (FILOCK && BSD) || SVR4
-/* pklock.c */
-#include "pklock.h"
-#endif
 #endif
 
 #endif
diff --git a/lock.c b/lock.c
index 753f9ef..438731b 100644
--- a/lock.c
+++ b/lock.c
@@ -8,9 +8,16 @@
  */
 
 #include <stdio.h>
+
+#include "display.h"
 #include "estruct.h"
 #include "edef.h"
 #include "efunc.h"
+#include "input.h"
+
+#if (FILOCK && BSD) || SVR4
+#include "pklock.h"
+#endif
 
 #if	BSD | SVR4
 #include <sys/errno.h>