diff --git a/libs/winloader/Makefile.am b/libs/winloader/Makefile.am
index 20514dd66a..9b048a3fd9 100644
--- a/libs/winloader/Makefile.am
+++ b/libs/winloader/Makefile.am
@@ -4,7 +4,7 @@ filter_LTLIBRARIES = libwinloader.la
 
 libwinloader_la_SOURCES = driver.c elfdll.c ext.c externals.c module.c pe_image.c pe_resource.c registry.c resource.c stubs.s vfl.c afl.c
 
-noinst_HEADERS = externals.h
+noinst_HEADERS = externals.h wineacm.h
 
 DEFINES=-rdynamic -fPIC -D__WINE__ -Ddbg_printf=__vprintf -DTRACE=__vprintf 
 CFLAGS += $(DEFINES)