diff --git a/src/Makefile.am b/src/Makefile.am
index 72b993c..190bef7 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,3 +1,5 @@
+EXTRA_DIST = jansson_config.h.win32
+
 include_HEADERS = jansson.h jansson_config.h
 
 lib_LTLIBRARIES = libjansson.la