diff --git a/dlls/itss/itss.c b/dlls/itss/itss.c
index de624464b3d..43d998178c0 100644
--- a/dlls/itss/itss.c
+++ b/dlls/itss/itss.c
@@ -163,7 +163,7 @@ static IClassFactoryVtbl ITSSCF_Vtbl =
 };
 
 
-HRESULT WINAPI ITSS_DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
+HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
 {
     DWORD i;
     IClassFactoryImpl *factory;
@@ -407,13 +407,13 @@ static HRESULT ITSS_create(IUnknown *pUnkOuter, LPVOID *ppObj)
 
 /*****************************************************************************/
 
-HRESULT WINAPI ITSS_DllRegisterServer(void)
+HRESULT WINAPI DllRegisterServer(void)
 {
     FIXME("\n");
     return S_OK;
 }
 
-HRESULT WINAPI ITSS_DllCanUnloadNow(void)
+HRESULT WINAPI DllCanUnloadNow(void)
 {
     TRACE("dll_count = %lu\n", dll_count);
     return dll_count ? S_FALSE : S_OK;
diff --git a/dlls/itss/itss.spec b/dlls/itss/itss.spec
index fbad9283cc3..46babf3cd7d 100644
--- a/dlls/itss/itss.spec
+++ b/dlls/itss/itss.spec
@@ -1,5 +1,5 @@
-@ stdcall -private DllCanUnloadNow() ITSS_DllCanUnloadNow
-@ stdcall -private DllGetClassObject(ptr ptr ptr) ITSS_DllGetClassObject
+@ stdcall -private DllCanUnloadNow()
+@ stdcall -private DllGetClassObject(ptr ptr ptr)
 @ stub DllInstall
-@ stdcall -private DllRegisterServer() ITSS_DllRegisterServer
+@ stdcall -private DllRegisterServer()
 @ stub DllUnregisterServer