diff --git a/src/IDirect3D/IDirect3D.c b/src/IDirect3D/IDirect3D.c
index 0aaa1e8..f6b075e 100644
--- a/src/IDirect3D/IDirect3D.c
+++ b/src/IDirect3D/IDirect3D.c
@@ -54,7 +54,7 @@ HRESULT __stdcall IDirect3D__Initialize(IDirect3DImpl* This, int a)
 HRESULT __stdcall IDirect3D__EnumDevices(IDirect3DImpl* This, int a, int b)
 {
     TRACE("NOT_IMPLEMENTED -> %s(This=%p) [%p]\n", __FUNCTION__, This, _ReturnAddress());
-    HRESULT ret = E_FAIL;
+    HRESULT ret = S_OK;
     TRACE("NOT_IMPLEMENTED <- %s\n", __FUNCTION__);
     return ret;
 }
diff --git a/src/IDirect3D/IDirect3D2.c b/src/IDirect3D/IDirect3D2.c
index 50ae5ec..c387d2a 100644
--- a/src/IDirect3D/IDirect3D2.c
+++ b/src/IDirect3D/IDirect3D2.c
@@ -46,7 +46,7 @@ ULONG __stdcall IDirect3D2__Release(IDirect3D2Impl* This)
 HRESULT __stdcall IDirect3D2__EnumDevices(IDirect3D2Impl* This, int a, int b)
 {
     TRACE("NOT_IMPLEMENTED -> %s(This=%p) [%p]\n", __FUNCTION__, This, _ReturnAddress());
-    HRESULT ret = E_FAIL;
+    HRESULT ret = S_OK;
     TRACE("NOT_IMPLEMENTED <- %s\n", __FUNCTION__);
     return ret;
 }
diff --git a/src/IDirect3D/IDirect3D3.c b/src/IDirect3D/IDirect3D3.c
index 9cc65bd..72429c8 100644
--- a/src/IDirect3D/IDirect3D3.c
+++ b/src/IDirect3D/IDirect3D3.c
@@ -46,7 +46,7 @@ ULONG __stdcall IDirect3D3__Release(IDirect3D3Impl* This)
 HRESULT __stdcall IDirect3D3__EnumDevices(IDirect3D3Impl* This, int a, int b)
 {
     TRACE("NOT_IMPLEMENTED -> %s(This=%p) [%p]\n", __FUNCTION__, This, _ReturnAddress());
-    HRESULT ret = E_FAIL;
+    HRESULT ret = S_OK;
     TRACE("NOT_IMPLEMENTED <- %s\n", __FUNCTION__);
     return ret;
 }
diff --git a/src/IDirect3D/IDirect3D7.c b/src/IDirect3D/IDirect3D7.c
index 5d64fc6..35aa353 100644
--- a/src/IDirect3D/IDirect3D7.c
+++ b/src/IDirect3D/IDirect3D7.c
@@ -46,7 +46,7 @@ ULONG __stdcall IDirect3D7__Release(IDirect3D7Impl* This)
 HRESULT __stdcall IDirect3D7__EnumDevices(IDirect3D7Impl* This, int a, int b)
 {
     TRACE("NOT_IMPLEMENTED -> %s(This=%p) [%p]\n", __FUNCTION__, This, _ReturnAddress());
-    HRESULT ret = E_FAIL;
+    HRESULT ret = S_OK;
     TRACE("NOT_IMPLEMENTED <- %s\n", __FUNCTION__);
     return ret;
 }