diff --git a/Makefile b/Makefile
index 1ca12f1d0..392b1d25c 100644
--- a/Makefile
+++ b/Makefile
@@ -252,7 +252,11 @@ ifndef NOFORTRAN
 ifeq ($(F_COMPILER), GFORTRAN)
 	-@echo "TIMER       = INT_ETIME" >> $(NETLIB_LAPACK_DIR)/make.inc
 ifdef SMP
+ifeq ($(OSNAME), WINNT)
+	-@echo "LOADER      = $(FC)" >> $(NETLIB_LAPACK_DIR)/make.inc
+else
 	-@echo "LOADER      = $(FC) -pthread" >> $(NETLIB_LAPACK_DIR)/make.inc
+endif
 else
 	-@echo "LOADER      = $(FC)" >> $(NETLIB_LAPACK_DIR)/make.inc
 endif