diff --git a/dlls/wtsapi32/wtsapi32.c b/dlls/wtsapi32/wtsapi32.c
index cfbc3134a93..995e43bd26a 100644
--- a/dlls/wtsapi32/wtsapi32.c
+++ b/dlls/wtsapi32/wtsapi32.c
@@ -141,6 +141,26 @@ void WINAPI WTSFreeMemory(PVOID pMemory)
     return;
 }
 
+/************************************************************
+ *                WTSOpenServerA (WTSAPI32.@)
+ */
+HANDLE WINAPI WTSOpenServerA(LPSTR pServerName)
+{
+    FIXME("(%s) stub\n", debugstr_a(pServerName));
+    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+    return NULL;
+}
+
+/************************************************************
+ *                WTSOpenServerW (WTSAPI32.@)
+ */
+HANDLE WINAPI WTSOpenServerW(LPWSTR pServerName)
+{
+    FIXME("(%s) stub\n", debugstr_w(pServerName));
+    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+    return NULL;
+}
+
 /************************************************************
  *                WTSQuerySessionInformationA  (WTSAPI32.@)
  */
diff --git a/dlls/wtsapi32/wtsapi32.spec b/dlls/wtsapi32/wtsapi32.spec
index 92ab57e51c7..0cfa7e319e3 100644
--- a/dlls/wtsapi32/wtsapi32.spec
+++ b/dlls/wtsapi32/wtsapi32.spec
@@ -8,8 +8,8 @@
 @ stdcall WTSEnumerateSessionsW(long long long ptr ptr)
 @ stdcall WTSFreeMemory(ptr)
 @ stub WTSLogoffSession
-@ stub WTSOpenServerA
-@ stub WTSOpenServerW
+@ stdcall WTSOpenServerA(ptr)
+@ stdcall WTSOpenServerW(ptr)
 @ stdcall WTSQuerySessionInformationA(long long long ptr ptr)
 @ stdcall WTSQuerySessionInformationW(long long long ptr ptr)
 @ stub WTSQueryUserConfigA