diff --git a/include/dde.h b/include/dde.h
index 976c457cd4f..35623615398 100644
--- a/include/dde.h
+++ b/include/dde.h
@@ -31,7 +31,7 @@ extern "C" {
 #ifdef _USER32_
 #define WINUSERAPI
 #else
-#define WINUSERAPI DECLSPEC_IMPORT
+#define WINUSERAPI DECLSPEC_HIDDEN
 #endif
 
 #include <dde.rh>
diff --git a/include/ddeml.h b/include/ddeml.h
index e769662988f..39c8c50b3c7 100644
--- a/include/ddeml.h
+++ b/include/ddeml.h
@@ -29,7 +29,7 @@ extern "C" {
 #ifdef _USER32_
 #define WINUSERAPI
 #else
-#define WINUSERAPI DECLSPEC_IMPORT
+#define WINUSERAPI DECLSPEC_HIDDEN
 #endif
 
 /* Codepage Constants
diff --git a/include/slpublic.h b/include/slpublic.h
index 97fa8c798c9..3f3a39274d1 100644
--- a/include/slpublic.h
+++ b/include/slpublic.h
@@ -26,7 +26,7 @@ extern "C" {
 #ifdef _SLC_
 #define SLCAPI
 #else
-#define SLCAPI DECLSPEC_IMPORT
+#define SLCAPI DECLSPEC_HIDDEN
 #endif
 
 typedef GUID SLID;
diff --git a/include/winbase.h b/include/winbase.h
index 6c97afe9fd6..314a8b7f605 100644
--- a/include/winbase.h
+++ b/include/winbase.h
@@ -28,13 +28,13 @@ extern "C" {
 #ifdef _KERNEL32_
 #define WINBASEAPI
 #else
-#define WINBASEAPI DECLSPEC_IMPORT
+#define WINBASEAPI DECLSPEC_HIDDEN
 #endif
 
 #ifdef _ADVAPI32_
 #define WINADVAPI
 #else
-#define WINADVAPI DECLSPEC_IMPORT
+#define WINADVAPI DECLSPEC_HIDDEN
 #endif
 
 #include <libloaderapi.h>
diff --git a/include/wincred.h b/include/wincred.h
index 86934b892ed..e8b5e677c82 100644
--- a/include/wincred.h
+++ b/include/wincred.h
@@ -26,7 +26,7 @@ extern "C" {
 #ifdef _ADVAPI32_
 #define WINADVAPI
 #else
-#define WINADVAPI DECLSPEC_IMPORT
+#define WINADVAPI DECLSPEC_HIDDEN
 #endif
 
 #ifndef __SECHANDLE_DEFINED__
diff --git a/include/wincrypt.h b/include/wincrypt.h
index 8d9106e752e..8ab503c5038 100644
--- a/include/wincrypt.h
+++ b/include/wincrypt.h
@@ -31,7 +31,7 @@ extern "C" {
 #ifdef _ADVAPI32_
 # define WINADVAPI
 #else
-# define WINADVAPI DECLSPEC_IMPORT
+# define WINADVAPI DECLSPEC_HIDDEN
 #endif
 
 /* some typedefs for function parameters */
diff --git a/include/wingdi.h b/include/wingdi.h
index 347ce1a2c2b..bed2c70798e 100644
--- a/include/wingdi.h
+++ b/include/wingdi.h
@@ -27,13 +27,13 @@ extern "C" {
 #ifdef _GDI32_
 #define WINGDIAPI
 #else
-#define WINGDIAPI DECLSPEC_IMPORT
+#define WINGDIAPI DECLSPEC_HIDDEN
 #endif
 
 #ifdef _OPENGL32_
 #define WGLAPI
 #else
-#define WGLAPI DECLSPEC_IMPORT
+#define WGLAPI DECLSPEC_HIDDEN
 #endif
 
 typedef struct _ABCFLOAT {
diff --git a/include/winnls.h b/include/winnls.h
index 5e5d8d13cd5..3be5077ad3a 100644
--- a/include/winnls.h
+++ b/include/winnls.h
@@ -25,7 +25,7 @@ extern "C" {
 #endif
 
 #ifndef _NORMALIZE_
-# define WINNORMALIZEAPI DECLSPEC_IMPORT
+# define WINNORMALIZEAPI DECLSPEC_HIDDEN
 #else
 # define WINNORMALIZEAPI
 #endif
diff --git a/include/winsvc.h b/include/winsvc.h
index 9db35dd4fe0..8509d1738c6 100644
--- a/include/winsvc.h
+++ b/include/winsvc.h
@@ -26,7 +26,7 @@ extern "C" {
 #ifdef _ADVAPI32_
 #define WINADVAPI
 #else
-#define WINADVAPI DECLSPEC_IMPORT
+#define WINADVAPI DECLSPEC_HIDDEN
 #endif
 
 /* Service database names */
diff --git a/include/winuser.h b/include/winuser.h
index a489cb744c1..60bc473225b 100644
--- a/include/winuser.h
+++ b/include/winuser.h
@@ -20,7 +20,7 @@
 #define _WINUSER_
 
 #if !defined(_USER32_)
-#define WINUSERAPI DECLSPEC_IMPORT
+#define WINUSERAPI DECLSPEC_HIDDEN
 #else
 #define WINUSERAPI
 #endif
diff --git a/include/wmium.h b/include/wmium.h
index bbb13a3dbf4..887c2b4ccf5 100644
--- a/include/wmium.h
+++ b/include/wmium.h
@@ -22,7 +22,7 @@
 #ifdef _WMI_SOURCE_
 #define WMIAPI __stdcall
 #else
-#define WMIAPI DECLSPEC_IMPORT __stdcall
+#define WMIAPI DECLSPEC_HIDDEN __stdcall
 #endif
 
 #include <guiddef.h>