diff --git a/third_party/llvm/llvm.bzl b/third_party/llvm/llvm.bzl
index 0a2c56033b5..f48cf84b0e6 100644
--- a/third_party/llvm/llvm.bzl
+++ b/third_party/llvm/llvm.bzl
@@ -103,7 +103,7 @@ def _quote(s):
       command.
     """
     return ('"' +
-            s.replace("\\", "\\\\").replace("$", "\\$").replace('"', '\\"') +
+            s.replace("\\", "\\\\").replace("$", "\\$").replace('"', "\\\"") +
             '"')
 
 def cmake_var_string(cmake_vars):
diff --git a/third_party/ngraph/ngraph.BUILD b/third_party/ngraph/ngraph.BUILD
index a7da325766c..afbe79b94d0 100644
--- a/third_party/ngraph/ngraph.BUILD
+++ b/third_party/ngraph/ngraph.BUILD
@@ -108,10 +108,10 @@ cc_library(
     copts = [
         "-I external/ngraph/src",
         "-I external/nlohmann_json_lib/include/",
-        '-D SHARED_LIB_EXT=\\".so\\"',
-        '-D NGRAPH_VERSION=\\"0.11.0\\"',
+        "-D SHARED_LIB_EXT=\".so\"",
+        "-D NGRAPH_VERSION=\"0.11.0\"",
         "-D NGRAPH_DEX_ONLY",
-        '-D PROJECT_ROOT_DIR=\\"\\"',
+        "-D PROJECT_ROOT_DIR=\"\"",
     ],
     visibility = ["//visibility:public"],
     deps = [
@@ -151,9 +151,9 @@ cc_library(
     copts = [
         "-I external/ngraph/src",
         "-I external/nlohmann_json_lib/include/",
-        '-D SHARED_LIB_EXT=\\".so\\"',
-        '-D NGRAPH_VERSION=\\"0.11.0\\"',
-        '-D PROJECT_ROOT_DIR=\\"\\"',
+        "-D SHARED_LIB_EXT=\\\".so\\\"",
+        "-D NGRAPH_VERSION=\\\"0.11.0\\\"",
+        "-D PROJECT_ROOT_DIR=\\\"\\\"",
     ],
     visibility = ["//visibility:public"],
     deps = [