diff --git a/lib/Makefile.am b/lib/Makefile.am
index 8a1439b8..69edc1b0 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -7,11 +7,11 @@ dist_libwebsockets_la_SOURCES=libwebsockets.c \
 				base64-decode.c \
 				client-handshake.c \
 				extension.c \
-				extension-deflate-stream.c \
+				extension-deflate-stream.c extension-deflate-stream.h \
 				private-libwebsockets.h
 				
 if EXT_GOOGLE_MUX
-dist_libwebsockets_la_SOURCES += extension-x-google-mux.c
+dist_libwebsockets_la_SOURCES += extension-x-google-mux.c extension-x-google-mux.h
 endif
 
 if LIBCRYPTO