diff --git a/utest/Makefile b/utest/Makefile
index 03457b0c4..625a3bcf4 100644
--- a/utest/Makefile
+++ b/utest/Makefile
@@ -15,6 +15,7 @@ ifneq ($(NO_LAPACK), 1)
 #OBJS += test_potrs.o
 endif
 
+ifndef USE_OPENMP
 ifndef OS_WINDOWS
 OBJS += test_fork.o
 else
@@ -22,6 +23,7 @@ ifdef OS_CYGWIN_NT
 OBJS += test_fork.o
 endif
 endif
+endif
 
 all : run_test