diff --git a/validate/plugins/flow/gstvalidateflow.c b/validate/plugins/flow/gstvalidateflow.c
index ad6f859865..07d2e51038 100644
--- a/validate/plugins/flow/gstvalidateflow.c
+++ b/validate/plugins/flow/gstvalidateflow.c
@@ -37,6 +37,8 @@
 #include <fcntl.h>
 #include <stdio.h>
 
+#include "gstvalidateflow.h"
+
 #define VALIDATE_FLOW_MISMATCH g_quark_from_static_string ("validateflow::mismatch")
 #define VALIDATE_FLOW_NOT_ATTACHED g_quark_from_static_string ("validateflow::not-attached")
 
@@ -82,8 +84,6 @@ static void runner_stopping (GstValidateRunner * runner,
     ValidateFlowOverride * flow);
 
 #define VALIDATE_TYPE_FLOW_OVERRIDE validate_flow_override_get_type ()
-G_DECLARE_FINAL_TYPE (ValidateFlowOverride, validate_flow_override,
-    VALIDATE, FLOW_OVERRIDE, GstValidateOverride);
 G_DEFINE_TYPE (ValidateFlowOverride, validate_flow_override,
     GST_TYPE_VALIDATE_OVERRIDE);
 
diff --git a/validate/plugins/flow/gstvalidateflow.h b/validate/plugins/flow/gstvalidateflow.h
new file mode 100644
index 0000000000..065c99eb5b
--- /dev/null
+++ b/validate/plugins/flow/gstvalidateflow.h
@@ -0,0 +1,34 @@
+/* GStreamer
+ *
+ * Copyright (C) 2018-2019 Igalia S.L.
+ * Copyright (C) 2018 Metrological Group B.V.
+ *  Author: Alicia Boya García <aboya@igalia.com>
+ *
+ * gstvalidateflow.c: A plugin to record streams and match them to
+ * expectation files.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <gst/gst.h>
+#include "../../gst/validate/validate.h"
+
+G_BEGIN_DECLS
+
+G_DECLARE_FINAL_TYPE (ValidateFlowOverride, validate_flow_override,
+    VALIDATE, FLOW_OVERRIDE, GstValidateOverride);
+
+G_END_DECLS