diff --git a/dlls/netio.sys/netio.c b/dlls/netio.sys/netio.c
index ef4089c68e0..539ea012e0d 100644
--- a/dlls/netio.sys/netio.c
+++ b/dlls/netio.sys/netio.c
@@ -34,6 +34,15 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(netio);
 
+NTSTATUS WINAPI WskCaptureProviderNPI(WSK_REGISTRATION *wsk_registration, ULONG wait_timeout,
+        WSK_PROVIDER_NPI *wsk_provider_npi)
+{
+    FIXME("wsk_registration %p, wait_timeout %u, wsk_provider_npi %p stub.\n",
+            wsk_registration, wait_timeout, wsk_provider_npi);
+
+    return STATUS_NOT_IMPLEMENTED;
+}
+
 NTSTATUS WINAPI WskRegister(WSK_CLIENT_NPI *wsk_client_npi, WSK_REGISTRATION *wsk_registration)
 {
     FIXME("wsk_client_npi %p, wsk_registration %p stub.\n", wsk_client_npi, wsk_registration);
diff --git a/dlls/netio.sys/netio.sys.spec b/dlls/netio.sys/netio.sys.spec
index 915259c6f4d..53891a7d275 100644
--- a/dlls/netio.sys/netio.sys.spec
+++ b/dlls/netio.sys/netio.sys.spec
@@ -384,7 +384,7 @@
 @ stub WfpStreamInspectSend
 @ stub WfpStreamIsFilterPresent
 @ stub WfpUninitializeLeastRecentlyUsedList
-@ stub WskCaptureProviderNPI
+@ stdcall WskCaptureProviderNPI(ptr long ptr)
 @ stdcall WskDeregister(ptr)
 @ stub WskQueryProviderCharacteristics
 @ stdcall WskRegister(ptr ptr)
diff --git a/include/ddk/wsk.h b/include/ddk/wsk.h
index e990d054bd7..ead8f830a22 100644
--- a/include/ddk/wsk.h
+++ b/include/ddk/wsk.h
@@ -112,6 +112,8 @@ typedef struct _WSK_PROVIDER_NPI
 
 NTSTATUS WINAPI WskRegister(WSK_CLIENT_NPI *wsk_client_npi, WSK_REGISTRATION *wsk_registration);
 void WINAPI WskDeregister(WSK_REGISTRATION *wsk_registration);
+NTSTATUS WINAPI WskCaptureProviderNPI(WSK_REGISTRATION *wsk_registration, ULONG wait_timeout,
+        WSK_PROVIDER_NPI *wsk_provider_npi);
 
 #ifdef __cplusplus
 }