diff --git a/src/AutoPilotPlugins/PX4/AirframeFactMetaData.xml b/src/AutoPilotPlugins/PX4/AirframeFactMetaData.xml
index f7db4378cbec602816676be99287c8e2fd72e830..caa3f6235c8a4451ac02e56de6ecbeb0db6a63b1 100644
--- a/src/AutoPilotPlugins/PX4/AirframeFactMetaData.xml
+++ b/src/AutoPilotPlugins/PX4/AirframeFactMetaData.xml
@@ -1,4 +1,3 @@
-<?xml version='1.0' encoding='UTF-8'?>
 <airframes>
   <version>1</version>
   <airframe_version_major>1</airframe_version_major>
diff --git a/src/FirmwarePlugin/PX4/PX4ParameterFactMetaData.xml b/src/FirmwarePlugin/PX4/PX4ParameterFactMetaData.xml
index d6aba33fdea6c719f455afb5518b68c6369f5427..0f8f805ca9df54c20799e6450f4fe500ca94409e 100644
--- a/src/FirmwarePlugin/PX4/PX4ParameterFactMetaData.xml
+++ b/src/FirmwarePlugin/PX4/PX4ParameterFactMetaData.xml
@@ -1,4 +1,3 @@
-<?xml version='1.0' encoding='UTF-8'?>
 <parameters>
   <version>3</version>
   <parameter_version_major>1</parameter_version_major>