diff --git a/libmtquery/testsuite/Makefile b/libmtquery/testsuite/Makefile

index 696012d..435f2d5 100644

--- a/libmtquery/testsuite/Makefile

+++ b/libmtquery/testsuite/Makefile

@@ -1,6 +1,6 @@

 include ../Makefile.common

 LDFLAGS = -Wl,-rpath,$(shell pwd)/../src/ -L../src/

-LDLIBS = -lmtquery

+LDLIBS = -lmtquery -lbtree

 DEBUG_INCLUDES= -I../../libmtsupport/include/mt/support -I../../libbtree/include/btree -I../../libfacet/include/facet

 CXXFLAGS = $(FLAGS) $(DEBUG_INCLUDES) -I../include/mt/query -I/usr/include/btree -I/usr/include/mt/support -I/usr/include/facet