diff --git a/index.js b/index.js
index 32fd008..551c2cc 100644
--- a/index.js
+++ b/index.js
@@ -267,6 +267,10 @@ Router.prototype._on = function _on (method, path, opts, handler, store) {
       params.push('*')
       currentNode = currentNode.createWildcardChild()
       parentNodePathIndex = i + 1
+
+      if (i !== path.length - 1) {
+        throw new Error('Wildcard must be the last character in the route')
+      }
     }
   }
 
diff --git a/test/issue-28.test.js b/test/issue-28.test.js
index fb901e6..c25d3ef 100644
--- a/test/issue-28.test.js
+++ b/test/issue-28.test.js
@@ -601,3 +601,19 @@ test('Wildcard node with constraints', t => {
     null
   )
 })
+
+test('Wildcard must be the last character in the route', (t) => {
+  t.plan(6)
+
+  const expectedError = new Error('Wildcard must be the last character in the route')
+
+  const findMyWay = FindMyWay()
+
+  t.throws(() => findMyWay.on('GET', '*1', () => {}), expectedError)
+  t.throws(() => findMyWay.on('GET', '*/', () => {}), expectedError)
+  t.throws(() => findMyWay.on('GET', '*?', () => {}), expectedError)
+
+  t.throws(() => findMyWay.on('GET', '/foo*123', () => {}), expectedError)
+  t.throws(() => findMyWay.on('GET', '/foo*?', () => {}), expectedError)
+  t.throws(() => findMyWay.on('GET', '/foo*/', () => {}), expectedError)
+})