diff --git a/dlls/devenum/createdevenum.c b/dlls/devenum/createdevenum.c
index d62c090f2c6..e64b27ba4d0 100644
--- a/dlls/devenum/createdevenum.c
+++ b/dlls/devenum/createdevenum.c
@@ -318,7 +318,7 @@ static void DEVENUM_ReadPins(HKEY hkeyFilterClass, REGFILTER2 *rgf2)
     rgf2->u.s.rgPins = rgPins;
 }
 
-static HRESULT DEVENUM_RegisterLegacyAmFilters()
+static HRESULT DEVENUM_RegisterLegacyAmFilters(void)
 {
     HKEY hkeyFilter = NULL;
     DWORD dwFilterSubkeys, i;
@@ -453,7 +453,7 @@ static HRESULT DEVENUM_RegisterLegacyAmFilters()
 /**********************************************************************
  * DEVENUM_ICreateDevEnum_CreateClassEnumerator
  */
-HRESULT WINAPI DEVENUM_ICreateDevEnum_CreateClassEnumerator(
+static HRESULT WINAPI DEVENUM_ICreateDevEnum_CreateClassEnumerator(
     ICreateDevEnum * iface,
     REFCLSID clsidDeviceClass,
     IEnumMoniker **ppEnumMoniker,
diff --git a/dlls/devenum/devenum_private.h b/dlls/devenum/devenum_private.h
index b50afb8ae57..5266d0309f0 100644
--- a/dlls/devenum/devenum_private.h
+++ b/dlls/devenum/devenum_private.h
@@ -82,11 +82,6 @@ typedef struct
 
 MediaCatMoniker * DEVENUM_IMediaCatMoniker_Construct(void);
 HRESULT DEVENUM_IEnumMoniker_Construct(HKEY hkey, IEnumMoniker ** ppEnumMoniker);
-HRESULT WINAPI DEVENUM_ICreateDevEnum_CreateClassEnumerator(
-    ICreateDevEnum * iface,
-    REFCLSID clsidDeviceClass,
-    IEnumMoniker **ppEnumMoniker,
-    DWORD dwFlags);
 
 extern ClassFactoryImpl DEVENUM_ClassFactory;
 extern CreateDevEnumImpl DEVENUM_CreateDevEnum;