diff --git a/Makefile.am b/Makefile.am
index 50d3ba89d38a6373e6af19739f2abbda3420bf46..d77a5416c6e0b8064be7a8b017dffbf18d88d247 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -25,7 +25,7 @@ endif
 TESTSUITE_BIN = $(top_builddir)/src/testsuite/testsuite $(TESTSUITE_OPTIONS)
 
 if TESTSUITE_VALGRIND
-TEST_BIN = valgrind -q --error-exitcode=1 --show-reachable=yes --leak-check=full $(TESTSUITE_BIN)
+TEST_BIN = libtool --mode=execute valgrind -q --error-exitcode=1 --show-reachable=yes --leak-check=full $(TESTSUITE_BIN)
 else
 TEST_BIN = $(TESTSUITE_BIN)
 endif