diff --git a/scripts/build_wrf.sh b/scripts/build_wrf.sh
index 3dc74cc..ff3463d 100755
--- a/scripts/build_wrf.sh
+++ b/scripts/build_wrf.sh
@@ -15,10 +15,10 @@ export LDFLAGS=-L$DIR/lib
 export CPPFLAGS=-I$DIR/include
 export CC=gcc
 export CXX=g++
-export FC=gfortran -fallow-argument-mismatch
-export FCFLAGS=-m64
-export F77=gfortran -fallow-argument-mismatch
-export FFLAGS=-m64
+export FC=gfortran
+export FCFLAGS="-m64  -fallow-argument-mismatch"
+export F77=gfortran
+export FFLAGS="-m64  -fallow-argument-mismatch"
 export NETCDF=$DIR
 export NETCDF4=1
 export HDF5=$DIR
diff --git a/scripts/install_deps.sh b/scripts/install_deps.sh
index e761a74..b77ad4a 100755
--- a/scripts/install_deps.sh
+++ b/scripts/install_deps.sh
@@ -9,9 +9,9 @@ export DIR=/opt/wrf/libs
 export CC=gcc
 export CXX=g++
 export FC=gfortran
-export FCFLAGS=-m64 -fallow-argument-mismatch
+export FCFLAGS="-m64 -fallow-argument-mismatch"
 export F77=gfortran
-export FFLAGS=-m64 -fallow-argument-mismatch
+export FFLAGS="-m64 -fallow-argument-mismatch"
 export NC_VERSION=4.9.2
 export NC_FORTRAN_VERSION=4.6.1
 MPICH_VERSION=4.0