diff --git a/winsup/w32api/ChangeLog b/winsup/w32api/ChangeLog
index 5805b4e55..ed98ee238 100644
--- a/winsup/w32api/ChangeLog
+++ b/winsup/w32api/ChangeLog
@@ -1,3 +1,9 @@
+2003-06-05  Luke Dunstan  <infidel@users.sourceforge.net>
+
+	* include/winuser.h (WNDCLASS[AW], WNDCLASSEX[AW]): Change type of
+	hInstance members to HINSTANCE.
+	Thanks to: Brenden T. <brenden@rcsis.com>
+
 2003-06-05  Bart Oldeman  <bartoldeman@users.sourceforge.net>
 
 	* include/lmaccess.h (UF_MNS_LOGON_ACCOUNT): Add define.
diff --git a/winsup/w32api/include/winuser.h b/winsup/w32api/include/winuser.h
index 6f3443044..f1ddd8d22 100644
--- a/winsup/w32api/include/winuser.h
+++ b/winsup/w32api/include/winuser.h
@@ -2208,7 +2208,7 @@ typedef struct _WNDCLASSA {
 	WNDPROC lpfnWndProc;
 	int cbClsExtra;
 	int cbWndExtra;
-	HANDLE hInstance;
+	HINSTANCE hInstance;
 	HICON hIcon;
 	HCURSOR hCursor;
 	HBRUSH hbrBackground;
@@ -2220,7 +2220,7 @@ typedef struct _WNDCLASSW {
 	WNDPROC lpfnWndProc;
 	int cbClsExtra;
 	int cbWndExtra;
-	HANDLE hInstance;
+	HINSTANCE hInstance;
 	HICON hIcon;
 	HCURSOR hCursor;
 	HBRUSH hbrBackground;
@@ -2233,7 +2233,7 @@ typedef struct _WNDCLASSEXA {
 	WNDPROC lpfnWndProc;
 	int cbClsExtra;
 	int cbWndExtra;
-	HANDLE hInstance;
+	HINSTANCE hInstance;
 	HICON hIcon;
 	HCURSOR hCursor;
 	HBRUSH hbrBackground;
@@ -2247,7 +2247,7 @@ typedef struct _WNDCLASSEXW {
 	WNDPROC lpfnWndProc;
 	int cbClsExtra;
 	int cbWndExtra;
-	HANDLE hInstance;
+	HINSTANCE hInstance;
 	HICON hIcon;
 	HCURSOR hCursor;
 	HBRUSH hbrBackground;