diff --git a/reactos/dll/win32/shell32/dialogs.c b/reactos/dll/win32/shell32/dialogs.c
index 53ca8b650f5..cfe50ccc638 100644
--- a/reactos/dll/win32/shell32/dialogs.c
+++ b/reactos/dll/win32/shell32/dialogs.c
@@ -62,9 +62,9 @@ static void FillList (HWND, char *) ;
  */
 BOOL WINAPI PickIconDlg(
 	HWND hwndOwner,
-	LPSTR lpstrFile,
-	DWORD nMaxFile,
-	LPDWORD lpdwIconIndex)
+	LPWSTR lpstrFile,
+	UINT nMaxFile,
+	INT* lpdwIconIndex)
 {
 	FIXME("(%p,%s,%08x,%p):stub.\n",
 	  hwndOwner, lpstrFile, nMaxFile,lpdwIconIndex);
diff --git a/reactos/dll/win32/shell32/undocshell.h b/reactos/dll/win32/shell32/undocshell.h
index 5bba7da83d8..2311b3ac0f8 100644
--- a/reactos/dll/win32/shell32/undocshell.h
+++ b/reactos/dll/win32/shell32/undocshell.h
@@ -84,12 +84,6 @@ BOOL WINAPI StrRetToStrNW(LPWSTR,DWORD,LPSTRRET,const ITEMIDLIST*);
  * Shell Common Dialogs
  */
 
-BOOL WINAPI PickIconDlg(
-	HWND hwndOwner,
-	LPSTR lpstrFile,
-	DWORD nMaxFile,
-	LPDWORD lpdwIconIndex);
-
 /* RunFileDlg flags */
 #define RFF_NOBROWSE       0x01
 #define RFF_NODEFAULT      0x02