diff --git a/python/core/core_auto.sip b/python/core/core_auto.sip
index d171204bc9e..b737a26c523 100644
--- a/python/core/core_auto.sip
+++ b/python/core/core_auto.sip
@@ -24,6 +24,7 @@
 %Include qgscoordinateformatter.sip
 %Include qgscoordinatetransform.sip
 %Include qgscoordinatetransformcontext.sip
+%Include qgscoordinatetransformcontext_p.sip
 %Include qgsdartmeasurement.sip
 %Include qgsdatadefinedsizelegend.sip
 %Include qgsdataitemprovider.sip