diff --git a/dlls/uiautomationcore/tests/uiautomation.c b/dlls/uiautomationcore/tests/uiautomation.c
index 4845fe7ab33..242f800d5db 100644
--- a/dlls/uiautomationcore/tests/uiautomation.c
+++ b/dlls/uiautomationcore/tests/uiautomation.c
@@ -29,7 +29,7 @@
 
 #include "wine/test.h"
 
-static HRESULT (WINAPI *pUiaProviderFromIAccessible)(IAccessible *, long, DWORD, IRawElementProviderSimple **);
+static HRESULT (WINAPI *pUiaProviderFromIAccessible)(IAccessible *, LONG, DWORD, IRawElementProviderSimple **);
 static HRESULT (WINAPI *pUiaDisconnectProvider)(IRawElementProviderSimple *);
 
 #define DEFINE_EXPECT(func) \
diff --git a/dlls/uiautomationcore/uia_client.c b/dlls/uiautomationcore/uia_client.c
index 5fe3078bec1..8dac22db066 100644
--- a/dlls/uiautomationcore/uia_client.c
+++ b/dlls/uiautomationcore/uia_client.c
@@ -539,7 +539,7 @@ static HRESULT WINAPI uia_node_get_hwnd(IWineUiaNode *iface, ULONG *out_hwnd)
     return S_OK;
 }
 
-static HRESULT WINAPI uia_node_attach_event(IWineUiaNode *iface, long proc_id, long event_cookie,
+static HRESULT WINAPI uia_node_attach_event(IWineUiaNode *iface, LONG proc_id, LONG event_cookie,
         IWineUiaEvent **ret_event)
 {
     struct uia_node *node = impl_from_IWineUiaNode(iface);
diff --git a/dlls/uiautomationcore/uia_event.c b/dlls/uiautomationcore/uia_event.c
index be3e422c313..563c16066db 100644
--- a/dlls/uiautomationcore/uia_event.c
+++ b/dlls/uiautomationcore/uia_event.c
@@ -562,7 +562,7 @@ static ULONG WINAPI uia_event_Release(IWineUiaEvent *iface)
     return ref;
 }
 
-static HRESULT WINAPI uia_event_advise_events(IWineUiaEvent *iface, BOOL advise_added, long adviser_start_idx)
+static HRESULT WINAPI uia_event_advise_events(IWineUiaEvent *iface, BOOL advise_added, LONG adviser_start_idx)
 {
     struct uia_event *event = impl_from_IWineUiaEvent(iface);
     HRESULT hr;
@@ -607,7 +607,7 @@ static HRESULT WINAPI uia_event_advise_events(IWineUiaEvent *iface, BOOL advise_
     return S_OK;
 }
 
-static HRESULT WINAPI uia_event_set_event_data(IWineUiaEvent *iface, const GUID *event_guid, long scope,
+static HRESULT WINAPI uia_event_set_event_data(IWineUiaEvent *iface, const GUID *event_guid, LONG scope,
         VARIANT runtime_id, IWineUiaEvent *event_iface)
 {
     struct uia_event *event = impl_from_IWineUiaEvent(iface);
@@ -1042,7 +1042,7 @@ HRESULT uia_event_add_serverside_event_adviser(IWineUiaEvent *serverside_event,
     return hr;
 }
 
-static HRESULT uia_event_advise(struct uia_event *event, BOOL advise_added, long start_idx)
+static HRESULT uia_event_advise(struct uia_event *event, BOOL advise_added, LONG start_idx)
 {
     IWineUiaEvent *event_iface;
     HRESULT hr;
diff --git a/dlls/uiautomationcore/uia_private.h b/dlls/uiautomationcore/uia_private.h
index 727c0be6894..807ca134521 100644
--- a/dlls/uiautomationcore/uia_private.h
+++ b/dlls/uiautomationcore/uia_private.h
@@ -220,7 +220,7 @@ HRESULT create_base_hwnd_provider(HWND hwnd, IRawElementProviderSimple **elprov)
 void uia_stop_provider_thread(void) DECLSPEC_HIDDEN;
 void uia_provider_thread_remove_node(HUIANODE node) DECLSPEC_HIDDEN;
 LRESULT uia_lresult_from_node(HUIANODE huianode) DECLSPEC_HIDDEN;
-HRESULT create_msaa_provider(IAccessible *acc, long child_id, HWND hwnd, BOOL known_root_acc,
+HRESULT create_msaa_provider(IAccessible *acc, LONG child_id, HWND hwnd, BOOL known_root_acc,
         IRawElementProviderSimple **elprov) DECLSPEC_HIDDEN;
 
 /* uia_utils.c */
diff --git a/dlls/uiautomationcore/uia_provider.c b/dlls/uiautomationcore/uia_provider.c
index faa7e2cb7fa..38ddcd8678f 100644
--- a/dlls/uiautomationcore/uia_provider.c
+++ b/dlls/uiautomationcore/uia_provider.c
@@ -1133,7 +1133,7 @@ static const ILegacyIAccessibleProviderVtbl msaa_acc_provider_vtbl = {
     msaa_acc_provider_get_DefaultAction,
 };
 
-HRESULT create_msaa_provider(IAccessible *acc, long child_id, HWND hwnd, BOOL known_root_acc,
+HRESULT create_msaa_provider(IAccessible *acc, LONG child_id, HWND hwnd, BOOL known_root_acc,
         IRawElementProviderSimple **elprov)
 {
     struct msaa_provider *msaa_prov = heap_alloc_zero(sizeof(*msaa_prov));
@@ -1172,7 +1172,7 @@ HRESULT create_msaa_provider(IAccessible *acc, long child_id, HWND hwnd, BOOL kn
 /***********************************************************************
  *          UiaProviderFromIAccessible (uiautomationcore.@)
  */
-HRESULT WINAPI UiaProviderFromIAccessible(IAccessible *acc, long child_id, DWORD flags,
+HRESULT WINAPI UiaProviderFromIAccessible(IAccessible *acc, LONG child_id, DWORD flags,
         IRawElementProviderSimple **elprov)
 {
     IServiceProvider *serv_prov;
diff --git a/include/uiautomationcoreapi.h b/include/uiautomationcoreapi.h
index 9d131abc6cc..0c2ad7b742d 100644
--- a/include/uiautomationcoreapi.h
+++ b/include/uiautomationcoreapi.h
@@ -537,7 +537,7 @@ void WINAPI UiaRegisterProviderCallback(UiaProviderCallback *pCallback);
 LRESULT WINAPI UiaReturnRawElementProvider(HWND hwnd, WPARAM wParam, LPARAM lParam, IRawElementProviderSimple *elprov);
 BOOL WINAPI UiaTextRangeRelease(HUIATEXTRANGE hobj);
 HRESULT WINAPI UiaHostProviderFromHwnd(HWND hwnd, IRawElementProviderSimple **elprov);
-HRESULT WINAPI UiaProviderFromIAccessible(IAccessible *acc, long child_id, DWORD flags, IRawElementProviderSimple **elprov);
+HRESULT WINAPI UiaProviderFromIAccessible(IAccessible *acc, LONG child_id, DWORD flags, IRawElementProviderSimple **elprov);
 HRESULT WINAPI UiaGetPropertyValue(HUIANODE huianode, PROPERTYID prop_id, VARIANT *out_val);
 HRESULT WINAPI UiaNodeFromProvider(IRawElementProviderSimple *elprov, HUIANODE *huianode);
 BOOL WINAPI UiaNodeRelease(HUIANODE huianode);