diff --git a/configure b/configure
index f1c15f3..3f0a067 100755
--- a/configure
+++ b/configure
@@ -131,11 +131,11 @@
 EOF
 
 # Configure the Cuda toolkit version to work with.
-perl -pi -e "s,CUDA_VERSION = '[0-9\.]*',CUDA_VERSION = '$TF_CUDA_EXT',s" tensorflow/core/platform/default/build_config.bzl
+perl -pi -e "s,CUDA_VERSION = \"[0-9\.]*\",CUDA_VERSION = \"$TF_CUDA_EXT\",s" tensorflow/core/platform/default/build_config.bzl
 perl -pi -e "s,(GetCudaVersion.*return )\"[0-9\.]*\",\1\"$TF_CUDA_EXT\",s" tensorflow/stream_executor/dso_loader.cc
 
 # Configure the Cudnn version to work with.
-perl -pi -e "s,CUDNN_VERSION = '[0-9\.]*',CUDNN_VERSION = '$TF_CUDNN_EXT',s" tensorflow/core/platform/default/build_config.bzl
+perl -pi -e "s,CUDNN_VERSION = \"[0-9\.]*\",CUDNN_VERSION = \"$TF_CUDNN_EXT\",s" tensorflow/core/platform/default/build_config.bzl
 perl -pi -e "s,(GetCudnnVersion.*return )\"[0-9\.]*\",\1\"$TF_CUDNN_EXT\",s" tensorflow/stream_executor/dso_loader.cc
 
 # Configure the compute capabilities that TensorFlow builds for.