diff --git a/src/express-middleware.js b/src/express-middleware.js
index 86aad69..520de92 100644
--- a/src/express-middleware.js
+++ b/src/express-middleware.js
@@ -51,7 +51,7 @@ class ExpressMiddleware {
                 route = req.originalUrl.split('?')[0];
             } else {
                 const splittedRoute = route.split('/');
-                const splittedUrl = req.originalUrl.split('/');
+                const splittedUrl = req.originalUrl.split('?')[0].split('/');
                 const routeIndex = splittedUrl.length - splittedRoute.length + 1;
 
                 const baseUrl = splittedUrl.slice(0, routeIndex).join('/');
@@ -69,12 +69,12 @@ class ExpressMiddleware {
                 route = route.replace(req.params[paramName], ':' + paramName);
             });
         }
-
+        
         // this condition will evaluate to true only in
         // express framework and no route was found for the request. if we log this metrics
         // we'll risk in a memory leak since the route is not a pattern but a hardcoded string.
         if (!route || route === '') {
-        // if (!req.route && res && res.statusCode === 404) {
+            // if (!req.route && res && res.statusCode === 404) {
             route = 'N/A';
         }
 
diff --git a/test/integration-tests/express/middleware-test.js b/test/integration-tests/express/middleware-test.js
index 6c7122e..6ae69be 100644
--- a/test/integration-tests/express/middleware-test.js
+++ b/test/integration-tests/express/middleware-test.js
@@ -307,7 +307,7 @@ describe('when using express framework', () => {
                         });
                 });
             });
-            describe('when calling a GET endpoint with query parmas', () => {
+            describe('when calling a GET endpoint with query params', () => {
                 before(() => {
                     return supertest(app)
                         .get('/v2?test=test')
@@ -323,6 +323,22 @@ describe('when using express framework', () => {
                         });
                 });
             });
+            describe('when calling a GET endpoint with query params with special character /', () => {
+                before(() => {
+                    return supertest(app)
+                        .get('/checkout?test=test/test1')
+                        .expect(200)
+                        .then((res) => { });
+                });
+                it('should add it to the histogram', () => {
+                    return supertest(app)
+                        .get('/metrics')
+                        .expect(200)
+                        .then((res) => {
+                            expect(res.text).to.contain('http_request_duration_seconds_bucket{le="+Inf",method="GET",route="/checkout",code="200"} 1');
+                        });
+                });
+            });        
         });
         describe('sub-sub app with error handler in the sub app', function () {
             describe('when calling a GET endpoint with path params and sub router', () => {