diff --git a/Makefile.system b/Makefile.system
index 8accf75cf..0d929daa5 100644
--- a/Makefile.system
+++ b/Makefile.system
@@ -1615,7 +1615,7 @@ LAPACK_FFLAGS := $(filter-out -fopenmp -mp -openmp -xopenmp=parallel,$(FFLAGS))
 LAPACK_FPFLAGS := $(filter-out -fopenmp -mp -openmp -xopenmp=parallel,$(FPFLAGS))
 else
 ifeq ($(CORE), C910V)
-LAPACK_FFLAGS := $(filter-out -O2 -O3,$(FFLAGS)
+LAPACK_FFLAGS := $(filter-out -O2 -O3,$(FFLAGS))
 LAPACK_FFLAGS += -O1
 LAPACK_FPFLAGS := $(FPFLAGS)
 endif