Add codecov.
diff --git a/.circleci/codecov.sh b/.circleci/codecov.sh
new file mode 100755
index 0000000..5ecdc55
--- /dev/null
+++ b/.circleci/codecov.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# Copyright 2017 Garrett D'Amore <garrett@damore.org>
+# Copyright 2017 Capitar IT Group BV <info@capitar.com>
+#
+# This software is supplied under the terms of the MIT License, a
+# copy of which should be located in the distribution where this
+# file was obtained (LICENSE.txt).  A copy of the license may also be
+# found online at https://opensource.org/licenses/MIT.
+
+if [ "${COVERAGE}" != ON ]
+then
+	echo "Code coverage not enabled."
+	exit 0
+fi
+
+GCOV=${GCOV:-gcov}
+
+bash <(curl -s https://codecov.io/bash) -x gcov || echo "Codecov did not collect coverage"
+echo 0
diff --git a/.circleci/config.yml b/.circleci/config.yml
index c25b7dd..7c41aff 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -51,7 +51,7 @@
           gcc-8
           g++-8
       - run: ./.circleci/build-and-test.sh
-      - run: ./etc/codecov.sh
+      - run: ./.circleci/codecov.sh
 
 workflows:
   version: 2