diff --git a/dummy/Makefile.am b/dummy/Makefile.am
index 937544534..4c18d1d86 100644
--- a/dummy/Makefile.am
+++ b/dummy/Makefile.am
@@ -1,7 +1,7 @@
 
 lib_LTLIBRARIES = libhamlib-dummy.la
-libhamlib_dummy_la_SOURCES = dummy.c
+libhamlib_dummy_la_SOURCES = dummy.c rot_dummy.c
 libhamlib_dummy_la_LDFLAGS = -no-undefined -module -version-info 0:0:0
 libhamlib_dummy_la_LIBADD = ../src/libhamlib.la
 
-noinst_HEADERS = dummy.h
+noinst_HEADERS = dummy.h rot_dummy.h