diff --git a/tests/build/build-opts.txt b/tests/build/build-opts.txt
index e6bcd056..6c4ed348 100644
--- a/tests/build/build-opts.txt
+++ b/tests/build/build-opts.txt
@@ -5,7 +5,6 @@ CPPFLAGS=-DSEXP_USE_TYPE_DEFS=0
 SEXP_USE_BOEHM=1
 CPPFLAGS=-DSEXP_USE_DEBUG_GC=1
 CPPFLAGS=-DSEXP_USE_GLOBAL_HEAP=1
-CPPFLAGS=-DSEXP_USE_GLOBAL_TYPES=1
 CPPFLAGS=-DSEXP_USE_GLOBAL_SYMBOLS=1
 CPPFLAGS=-DSEXP_USE_FLONUMS=0
 CPPFLAGS=-DSEXP_USE_IMMEDIATE_FLONUMS=1