diff --git a/honoka/src/Makefile.am b/honoka/src/Makefile.am
index d0795cd..8a938aa 100644
--- a/honoka/src/Makefile.am
+++ b/honoka/src/Makefile.am
@@ -27,7 +27,7 @@
 			  -DHONOKA_PLUGINDIR=\"@SCIM_MODULEDIR@/honoka\"
 
 noinst_HEADERS = honoka_imengine.h  \
-				multiconvertor.h 
+				multiconvertor.h honoka_def.h
 
 moduledir		= @SCIM_MODULEDIR@/IMEngine
 module_LTLIBRARIES	= honoka.la