diff --git a/message_definitions/v1.0/common.xml b/message_definitions/v1.0/common.xml
index 1e18da1572..769a55ba1a 100644
--- a/message_definitions/v1.0/common.xml
+++ b/message_definitions/v1.0/common.xml
@@ -5236,6 +5236,7 @@
       <field type="float" name="pt_compensation">Pressure/temperature compensation</field>
       <extensions/>
       <field type="float" name="ignition_voltage" units="V">Supply voltage to EFI sparking system.  Zero in this value means "unknown", so if the supply voltage really is zero volts use 0.0001 instead.</field>
+      <field type="float" name="fuel_pressure" units="kPa">Fuel pressure. Zero in this value means "unknown", so if the fuel pressure really is zero kPa use 0.0001 instead.</field>
     </message>
     <!-- MESSAGE IDs 180 - 229: Space for custom messages in individual projectname_messages.xml files -->
     <message id="230" name="ESTIMATOR_STATUS">