diff --git a/test/Makefile b/test/Makefile
index 923f1537c..5b0f50cd5 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -1,5 +1,7 @@
 TOPDIR	= ..
 include ../Makefile.system
+override CFLAGS += -fno-tree-vectorize
+endif
 ifeq ($(F_COMPILER),GFORTRAN)
         override FFLAGS += -fno-tree-vectorize
 endif