diff --git a/include/cfgmgr32.h b/include/cfgmgr32.h
index cd26df83a46..64f08814a4d 100644
--- a/include/cfgmgr32.h
+++ b/include/cfgmgr32.h
@@ -21,6 +21,10 @@
 
 /* FIXME: #include <cfg.h> */
 
+#ifndef GUID_DEFINED
+# include <guiddef.h>
+#endif
+
 /* cfgmgr32 doesn't use the normal convention, it adds an underscore before A/W */
 #ifdef WINE_NO_UNICODE_MACROS
 # define DECL_WINELIB_CFGMGR32_TYPE_AW(type)  /* nothing */
diff --git a/include/dbt.h b/include/dbt.h
index 88a1df47ee5..b326dc25028 100644
--- a/include/dbt.h
+++ b/include/dbt.h
@@ -19,6 +19,10 @@
 #ifndef __WINE_DBT_H
 #define __WINE_DBT_H
 
+#ifndef GUID_DEFINED
+# include <guiddef.h>
+#endif
+
 /* dbt.h doesn't use the normal convention, it adds an underscore before A/W */
 #ifdef WINE_NO_UNICODE_MACROS
 # define DECL_WINELIB_DBT_TYPE_AW(type)  /* nothing */
diff --git a/include/ntddndis.h b/include/ntddndis.h
index 5085f25cc6c..171562852ba 100644
--- a/include/ntddndis.h
+++ b/include/ntddndis.h
@@ -19,14 +19,18 @@
 #ifndef _NTDDNDIS_
 #define _NTDDNDIS_
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 #include <ifdef.h>
 #include <devpkey.h>
 /* #include <pciprop.h> */
 
+#ifndef GUID_DEFINED
+# include <guiddef.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define _NDIS_CONTROL_CODE(request, method) \
     CTL_CODE(FILE_DEVICE_PHYSICAL_NETCARD, request, method, FILE_ANY_ACCESS)
 
diff --git a/include/ntsecapi.h b/include/ntsecapi.h
index adfd9300b56..2bb3d312e43 100644
--- a/include/ntsecapi.h
+++ b/include/ntsecapi.h
@@ -19,6 +19,10 @@
 #ifndef __WINE_NTSECAPI_H
 #define __WINE_NTSECAPI_H
 
+#ifndef GUID_DEFINED
+# include <guiddef.h>
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif /* defined(__cplusplus) */