diff --git a/lib/libuutil/Makefile.in b/lib/libuutil/Makefile.in
index c6f89e2476..459ecb30d9 100644
--- a/lib/libuutil/Makefile.in
+++ b/lib/libuutil/Makefile.in
@@ -219,7 +219,8 @@ AM_CFLAGS = -Wall -Wstrict-prototypes -Wshadow -Werror -Wno-switch \
 	-DTEXT_DOMAIN=\\\"zfs-linux-user\\\"
 DEFAULT_INCLUDES = \
 	-I${top_srcdir}/lib/libuutil/include \
-	-I${top_srcdir}/lib/libspl/include
+	-I${top_srcdir}/lib/libspl/include \
+	-I${top_srcdir}/module/avl/include
 
 lib_LTLIBRARIES = libuutil.la
 libuutil_la_SOURCES = \