diff --git a/.travis/run.sh b/.travis/run.sh
index b519c9f..a1788f8 100755
--- a/.travis/run.sh
+++ b/.travis/run.sh
@@ -31,3 +31,7 @@
 fi
 source ~/.venv/bin/activate
 tox -- $TOX_FLAGS
+# Output information about linking of the OpenSSL library on OS X
+if [[ "$(uname -s)" == "Darwin" ]]; then
+    otool -L `find .tox -name _openssl.so`
+fi