diff --git a/RTCP/Interface/include/Interface/Makefile.am b/RTCP/Interface/include/Interface/Makefile.am
index df6614217bcfab3d94bad2f13bf23a4924c348f4..7ef160e42f71830e7c074a91ff73fa23abf16096 100644
--- a/RTCP/Interface/include/Interface/Makefile.am
+++ b/RTCP/Interface/include/Interface/Makefile.am
@@ -19,6 +19,7 @@ pkginclude_HEADERS = Package__Version.h \
 		     Exceptions.h \
 		     StreamableData.h \
 		     PencilBeamData.h \
+		     PencilCoordinates.h \
                      StokesData.h \
                      PipelineOutput.h