diff --git a/lib/libzfs/Makefile.am b/lib/libzfs/Makefile.am
index 9fc11ccab0..93871aad82 100644
--- a/lib/libzfs/Makefile.am
+++ b/lib/libzfs/Makefile.am
@@ -10,7 +10,8 @@ DEFAULT_INCLUDES += \
 	-I${top_srcdir}/module/zfs/include \
         -I${top_srcdir}/module/zcommon/include \
         -I${top_srcdir}/module/nvpair/include \
-        -I${top_srcdir}/module/avl/include
+        -I${top_srcdir}/module/avl/include \
+	-I${top_srcdir}/module/unicode/include
 
 lib_LTLIBRARIES = libzfs.la
 
diff --git a/lib/libzpool/Makefile.am b/lib/libzpool/Makefile.am
index 3b4e1e340d..c013169e01 100644
--- a/lib/libzpool/Makefile.am
+++ b/lib/libzpool/Makefile.am
@@ -7,6 +7,7 @@ DEFAULT_INCLUDES += \
 	-I${top_srcdir}/module/zcommon/include \
 	-I${top_srcdir}/module/nvpair/include \
 	-I${top_srcdir}/module/avl/include \
+	-I${top_srcdir}/module/unicode/include \
 	-I${top_srcdir}/module/zfs/include
 
 lib_LTLIBRARIES = libzpool.la