diff --git a/include/lmerr.h b/include/lmerr.h
index abf33eefb6f..47b869ce210 100644
--- a/include/lmerr.h
+++ b/include/lmerr.h
@@ -21,6 +21,8 @@
 #ifndef __WINE_LMERR_H
 #define __WINE_LMERR_H
 
+#include <winerror.h>
+
 #define NERR_Success    0
 
 #define NERR_BASE                         2100
diff --git a/include/lmserver.h b/include/lmserver.h
index 1d738fcdf76..94a4844894a 100644
--- a/include/lmserver.h
+++ b/include/lmserver.h
@@ -19,6 +19,7 @@
 #define _LMSERVER_
 
 #include <winsvc.h>
+#include <lmcons.h>
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/include/lmshare.h b/include/lmshare.h
index 082abf2f916..8364969c2a1 100644
--- a/include/lmshare.h
+++ b/include/lmshare.h
@@ -22,6 +22,8 @@
 extern "C" {
 #endif
 
+#include <lmcons.h>
+
 typedef struct _SHARE_INFO_0 {
     LMSTR shi0_netname;
 } SHARE_INFO_0, *PSHARE_INFO_0, *LPSHARE_INFO_0;