diff --git a/src/raven_clj/core.clj b/src/raven_clj/core.clj
index c78a8f1..c5f14b2 100644
--- a/src/raven_clj/core.clj
+++ b/src/raven_clj/core.clj
@@ -52,7 +52,11 @@
      :uri (format "%s://%s" protocol
                   (string/join
                     "/" (butlast (string/split url #"/"))))
-     :project-id (Integer/parseInt (last (string/split url #"/")))}))
+     :project-id (-> (string/split url #"/")
+                     (last)
+                     (string/split #"\?")
+                     (first)
+                     (Integer/parseInt))}))
 
 (defn capture
   "Send a message to a Sentry server.
diff --git a/test/raven_clj/core_test.clj b/test/raven_clj/core_test.clj
index 261ab3e..e43c7fd 100644
--- a/test/raven_clj/core_test.clj
+++ b/test/raven_clj/core_test.clj
@@ -78,6 +78,13 @@
 
   (testing "dsn parsing with port and path"
     (is (= (parse-dsn "https://b70a31b3510c4cf793964a185cfe1fd0:b7d80b520139450f903720eb7991bf3d@example.com:9000/sentry/1")
+           {:key "b70a31b3510c4cf793964a185cfe1fd0"
+            :secret "b7d80b520139450f903720eb7991bf3d"
+            :uri "https://example.com:9000/sentry"
+            :project-id 1})))
+
+  (testing "dsn parsing with query parameters"
+    (is (= (parse-dsn "https://b70a31b3510c4cf793964a185cfe1fd0:b7d80b520139450f903720eb7991bf3d@example.com:9000/sentry/1?environment=test&servername=example")
            {:key "b70a31b3510c4cf793964a185cfe1fd0"
             :secret "b7d80b520139450f903720eb7991bf3d"
             :uri "https://example.com:9000/sentry"