diff --git a/tests/Makefile.am b/tests/Makefile.am
index 83e7f76..b2b61dc 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -19,6 +19,6 @@ TESTS          += tree
 check_PROGRAMS  = $(TESTS)
 
 # Ignore warnings about unused result, in e.g. write()
-CFLAGS          = -W -Wall -Wextra -Wno-unused-result
 CPPFLAGS        = -D_GNU_SOURCE
 LDADD           = -L../ ../libite.la
+LDFLAGS         = -static