diff --git a/dlls/ieframe/dochost.c b/dlls/ieframe/dochost.c
index 8f3b0887849..2d4261a819c 100644
--- a/dlls/ieframe/dochost.c
+++ b/dlls/ieframe/dochost.c
@@ -80,7 +80,7 @@ void abort_dochost_tasks(DocHost *This, task_proc_t proc)
     }
 }
 
-void on_commandstate_change(DocHost *doc_host, LONG command, VARIANT_BOOL enable)
+void on_commandstate_change(DocHost *doc_host, LONG command, BOOL enable)
 {
     DISPPARAMS dispparams;
     VARIANTARG params[2];
diff --git a/dlls/ieframe/ieframe.h b/dlls/ieframe/ieframe.h
index ae36c65f1be..371cb030257 100644
--- a/dlls/ieframe/ieframe.h
+++ b/dlls/ieframe/ieframe.h
@@ -278,7 +278,7 @@ HRESULT dochost_object_available(DocHost*,IUnknown*) DECLSPEC_HIDDEN;
 void set_doc_state(DocHost*,READYSTATE) DECLSPEC_HIDDEN;
 void deactivate_document(DocHost*) DECLSPEC_HIDDEN;
 void create_doc_view_hwnd(DocHost*) DECLSPEC_HIDDEN;
-void on_commandstate_change(DocHost*,LONG,VARIANT_BOOL) DECLSPEC_HIDDEN;
+void on_commandstate_change(DocHost*,LONG,BOOL) DECLSPEC_HIDDEN;
 void notify_download_state(DocHost*,BOOL) DECLSPEC_HIDDEN;
 void update_navigation_commands(DocHost *dochost) DECLSPEC_HIDDEN;
 
diff --git a/dlls/ieframe/navigate.c b/dlls/ieframe/navigate.c
index 1b42fa592af..1027313eb18 100644
--- a/dlls/ieframe/navigate.c
+++ b/dlls/ieframe/navigate.c
@@ -885,8 +885,8 @@ static HRESULT navigate_bsc(DocHost *This, BindStatusCallback *bsc, IMoniker *mo
     }
 
     notify_download_state(This, TRUE);
-    on_commandstate_change(This, CSC_NAVIGATEBACK, VARIANT_FALSE);
-    on_commandstate_change(This, CSC_NAVIGATEFORWARD, VARIANT_FALSE);
+    on_commandstate_change(This, CSC_NAVIGATEBACK, FALSE);
+    on_commandstate_change(This, CSC_NAVIGATEFORWARD, FALSE);
 
     if(This->document)
         deactivate_document(This);
diff --git a/dlls/ieframe/oleobject.c b/dlls/ieframe/oleobject.c
index 3a75a71cdac..2d3cac674ad 100644
--- a/dlls/ieframe/oleobject.c
+++ b/dlls/ieframe/oleobject.c
@@ -471,8 +471,8 @@ static HRESULT WINAPI OleObject_SetClientSite(IOleObject *iface, LPOLECLIENTSITE
     release_client_site(This);
 
     if(!pClientSite) {
-        on_commandstate_change(&This->doc_host, CSC_NAVIGATEBACK, VARIANT_FALSE);
-        on_commandstate_change(&This->doc_host, CSC_NAVIGATEFORWARD, VARIANT_FALSE);
+        on_commandstate_change(&This->doc_host, CSC_NAVIGATEBACK, FALSE);
+        on_commandstate_change(&This->doc_host, CSC_NAVIGATEFORWARD, FALSE);
 
         if(This->doc_host.document)
             deactivate_document(&This->doc_host);