diff --git a/ext/blas/Makefile.in b/ext/blas/Makefile.in
index d54221fe7..1addb835b 100755
--- a/ext/blas/Makefile.in
+++ b/ext/blas/Makefile.in
@@ -9,7 +9,7 @@ BLASLIB = @buildlib@/libctblas.a
 SUFFIXES=
 SUFFIXES= .f .o
 
-F_FLAGS = @FFLAGS@ @F77FLAGS@
+F_FLAGS = @FFLAGS@ 
 
 OBJS = \
 dasum.o \