diff --git a/bazel_tools/helm.bzl b/bazel_tools/helm.bzl
index 6accf8b..d74b847 100644
--- a/bazel_tools/helm.bzl
+++ b/bazel_tools/helm.bzl
@@ -3,27 +3,26 @@
 # --- begin runfiles.bash initialization ---
 # Copy-pasted from Bazel's Bash runfiles library (tools/bash/runfiles/runfiles.bash).
 set -euo pipefail
-if [[ ! -d "\$${{RUNFILES_DIR:-/dev/null}}" && ! -f "\$${{RUNFILES_MANIFEST_FILE:-/dev/null}}" ]]; then
-    if [[ -f "\$$0.runfiles_manifest" ]]; then
-        export RUNFILES_MANIFEST_FILE="\$$0.runfiles_manifest"
-    elif [[ -f "\$$0.runfiles/MANIFEST" ]]; then
-        export RUNFILES_MANIFEST_FILE="\$$0.runfiles/MANIFEST"
-    elif [[ -f "\$$0.runfiles/bazel_tools/tools/bash/runfiles/runfiles.bash" ]]; then
-        export RUNFILES_DIR="\$$0.runfiles"
+if [[ ! -d "\\$${{RUNFILES_DIR:-/dev/null}}" && ! -f "\\$${{RUNFILES_MANIFEST_FILE:-/dev/null}}" ]]; then
+    if [[ -f "\\$$0.runfiles_manifest" ]]; then
+        export RUNFILES_MANIFEST_FILE="\\$$0.runfiles_manifest"
+    elif [[ -f "\\$$0.runfiles/MANIFEST" ]]; then
+        export RUNFILES_MANIFEST_FILE="\\$$0.runfiles/MANIFEST"
+    elif [[ -f "\\$$0.runfiles/bazel_tools/tools/bash/runfiles/runfiles.bash" ]]; then
+        export RUNFILES_DIR="\\$$0.runfiles"
     fi
 fi
-if [[ -f "\$${{RUNFILES_DIR:-/dev/null}}/bazel_tools/tools/bash/runfiles/runfiles.bash" ]]; then
-    source "\$${{RUNFILES_DIR}}/bazel_tools/tools/bash/runfiles/runfiles.bash"
-elif [[ -f "\$${{RUNFILES_MANIFEST_FILE:-/dev/null}}" ]]; then
-    source "\$$(grep -m1 "^bazel_tools/tools/bash/runfiles/runfiles.bash " \
-    	                 "\$$RUNFILES_MANIFEST_FILE" | cut -d ' ' -f 2-)"
+if [[ -f "\\$${{RUNFILES_DIR:-/dev/null}}/bazel_tools/tools/bash/runfiles/runfiles.bash" ]]; then
+    source "\\$${{RUNFILES_DIR}}/bazel_tools/tools/bash/runfiles/runfiles.bash"
+elif [[ -f "\\$${{RUNFILES_MANIFEST_FILE:-/dev/null}}" ]]; then
+    source "\\$$(grep -m1 "^bazel_tools/tools/bash/runfiles/runfiles.bash "     \t                 "\\$$RUNFILES_MANIFEST_FILE" | cut -d ' ' -f 2-)"
 else
     echo >&2 "ERROR: cannot find @bazel_tools//tools/bash/runfiles:runfiles.bash"
     exit 1
 fi
 # --- end runfiles.bash initialization ---
-CHART_TARBALL=\$$(rlocation __main__/{package}/{chart})
-helm --namespace={namespace} install --create-namespace {release_name} \$$CHART_TARBALL {args}
+CHART_TARBALL=\\$$(rlocation __main__/{package}/{chart})
+helm --namespace={namespace} install --create-namespace {release_name} \\$$CHART_TARBALL {args}
 """
 
 __HELM_UNINSTALL_TMPL = """
@@ -35,43 +34,46 @@
     for arg, value in args.items():
         args_str += "--set %s=%s " % (arg, value)
     native.genrule(
-	name = "%s.sh" % name,
-	executable = False,
-	srcs = [chart,],
-	outs = ["helm_install.sh",],
-	cmd = """cat > $@ <<EOM
+        name = "%s.sh" % name,
+        executable = False,
+        srcs = [chart],
+        outs = ["helm_install.sh"],
+        cmd = """cat > $@ <<EOM
 %s
 EOM
 """ % __HELM_INSTALL_TMPL.format(
-		namespace = namespace,
-		release_name = release_name,
-		package = native.package_name(),
-		chart = "%s.tar.gz" % chart.split(":")[1],
-		args = args_str,
-    ))
+            namespace = namespace,
+            release_name = release_name,
+            package = native.package_name(),
+            chart = "%s.tar.gz" % chart.split(":")[1],
+            args = args_str,
+        ),
+    )
     native.sh_binary(
-	name = name,
-	srcs = ["helm_install.sh",],
-	data = [
-	     chart,
-	],
-	deps = [
-	     "@bazel_tools//tools/bash/runfiles",
-    ])
+        name = name,
+        srcs = ["helm_install.sh"],
+        data = [
+            chart,
+        ],
+        deps = [
+            "@bazel_tools//tools/bash/runfiles",
+        ],
+    )
 
 def helm_uninstall(name, namespace, release_name):
     native.genrule(
-	name = "%s.sh" % name,
-	executable = False,
-	outs = ["helm_uninstall.sh",],
-	cmd = """cat > $@ <<EOM
+        name = "%s.sh" % name,
+        executable = False,
+        outs = ["helm_uninstall.sh"],
+        cmd = """cat > $@ <<EOM
 %s
 EOM
 """ % __HELM_UNINSTALL_TMPL.format(
-		namespace = namespace,
-		release_name = release_name,
-    ))
+            namespace = namespace,
+            release_name = release_name,
+        ),
+    )
     native.sh_binary(
-	name = name,
-	srcs = ["helm_uninstall.sh",]
+        name = name,
+        srcs = ["helm_uninstall.sh"],
     )