diff --git a/winsup/w32api/ChangeLog b/winsup/w32api/ChangeLog
index 7314c9af1..f6cf1a076 100644
--- a/winsup/w32api/ChangeLog
+++ b/winsup/w32api/ChangeLog
@@ -1,3 +1,7 @@
+2004-07-06  Corinna Vinschen  <corinna@vinschen.de>
+
+	* winbase.h (IsWow64Process): Add missing WINAPI qualifier.
+
 2004-06-16  Danny Smith  <dannysmith@users.sourceforge.net>
 
 	* include/winnt.h (IMAGE_ORDINAL_FLAG): Map to ...
diff --git a/winsup/w32api/include/winbase.h b/winsup/w32api/include/winbase.h
index a05e5d3c8..eae9f71f6 100644
--- a/winsup/w32api/include/winbase.h
+++ b/winsup/w32api/include/winbase.h
@@ -1609,7 +1609,7 @@ BOOL WINAPI IsValidAcl(PACL);
 BOOL WINAPI IsValidSecurityDescriptor(PSECURITY_DESCRIPTOR);
 BOOL WINAPI IsValidSid(PSID);
 #if (_WIN32_WINNT >= 0x0501)
-BOOL IsWow64Process(HANDLE,PBOOL);
+BOOL WINAPI IsWow64Process(HANDLE,PBOOL);
 #endif
 void WINAPI LeaveCriticalSection(LPCRITICAL_SECTION);
 #define LimitEmsPages(n)