diff --git a/lib/hooks.js b/lib/hooks.js
index 9149077..1e9b0f2 100755
--- a/lib/hooks.js
+++ b/lib/hooks.js
@@ -68,7 +68,9 @@ const opentracingEnd = (options = {}) => {
       span.log({ event: 'request_finished' });
 
       try {
-        span.finish();
+        if (span._duration === undefined) {
+          span.finish();
+        }
       } catch (err) {
         return context;
       }
@@ -106,7 +108,9 @@ const opentracingError = (options = {}) => {
       span.log({ event: 'request_error', message });
 
       try {
-        span.finish();
+        if (span._duration === undefined) {
+          span.finish();
+        }
       } catch (err) {
         return context;
       }
diff --git a/lib/middleware.js b/lib/middleware.js
index 375367a..b5cb86c 100755
--- a/lib/middleware.js
+++ b/lib/middleware.js
@@ -57,7 +57,11 @@ module.exports = function (req, res, options = {}) {
       if (resHeaders && Object.keys(resHeaders).length) { tagObject('response.headers', resHeaders, span, options); }
     }
 
-    span.finish();
+    try {
+      if (span._duration === undefined) {
+        span.finish();
+      }
+    } catch (err) {}
   };
 
   res.on('close', finishSpan);