diff --git a/dlls/msi/source.c b/dlls/msi/source.c
index d1845379a55..f7dcf265e2a 100644
--- a/dlls/msi/source.c
+++ b/dlls/msi/source.c
@@ -606,6 +606,9 @@ UINT WINAPI MsiSourceListAddSourceExW( LPCWSTR szProduct, LPCWSTR szUserSid,
     if (!szSource || !*szSource)
         return ERROR_INVALID_PARAMETER;
 
+    if (!(dwOptions & (MSISOURCETYPE_NETWORK | MSISOURCETYPE_URL)))
+        return ERROR_INVALID_PARAMETER;
+
     if (dwOptions & MSICODE_PATCH)
     {
         FIXME("Unhandled options MSICODE_PATCH\n");
diff --git a/dlls/msi/tests/source.c b/dlls/msi/tests/source.c
index d81a29aeea9..bbef689674a 100644
--- a/dlls/msi/tests/source.c
+++ b/dlls/msi/tests/source.c
@@ -594,18 +594,12 @@ static void test_MsiSourceListAddSourceEx(void)
     r = pMsiSourceListAddSourceExA(prodcode, usersid,
                                   MSIINSTALLCONTEXT_USERUNMANAGED,
                                   MSICODE_PRODUCT, "source", 0);
-    todo_wine
-    {
-        ok(r == ERROR_INVALID_PARAMETER, "Expected ERROR_INVALID_PARAMETER, got %d\n", r);
-    }
+    ok(r == ERROR_INVALID_PARAMETER, "Expected ERROR_INVALID_PARAMETER, got %d\n", r);
 
     r = pMsiSourceListAddSourceExA(prodcode, usersid,
                                   MSIINSTALLCONTEXT_USERUNMANAGED,
                                   MSICODE_PATCH, "source", 0);
-    todo_wine
-    {
-        ok(r == ERROR_INVALID_PARAMETER, "Expected ERROR_INVALID_PARAMETER, got %d\n", r);
-    }
+    ok(r == ERROR_INVALID_PARAMETER, "Expected ERROR_INVALID_PARAMETER, got %d\n", r);
 
     /* NULL szSource */
     r = pMsiSourceListAddSourceExA(prodcode, usersid,