diff --git a/CHANGELOG.md b/CHANGELOG.md
index 07b553e..b49527d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+# 1.9.1 (2020-09-09)
+
+## Bug fix
+- Fix traversed path when prefix is null [ebrehault] 
+
 # 1.9.0 (2020-09-03)
 
 ## Improvement
diff --git a/projects/traversal/package.json b/projects/traversal/package.json
index a9a3f64..053f5bc 100644
--- a/projects/traversal/package.json
+++ b/projects/traversal/package.json
@@ -1,6 +1,6 @@
 {
     "name": "angular-traversal",
-    "version": "1.9.0",
+    "version": "1.9.1",
     "license": "MIT",
     "author": {
         "name": "Eric Brehault",
diff --git a/projects/traversal/src/lib/traverser.directive.ts b/projects/traversal/src/lib/traverser.directive.ts
index 9dece5e..edd39d8 100644
--- a/projects/traversal/src/lib/traverser.directive.ts
+++ b/projects/traversal/src/lib/traverser.directive.ts
@@ -31,9 +31,9 @@ export class TraverserOutlet implements OnInit, OnDestroy {
 
     ngOnInit() {
         this.traverser.target.pipe(takeUntil(this.terminator)).subscribe((target: Target) => this.render(target));
-        this.traverser.traverse(this.location.path().replace('/' + this.traverser.getPrefix(), ''), false);
+        this.traverser.traverse(this.location.path().replace(this.traverser.getPrefix(), ''), false);
         this.location.subscribe((loc) => {
-            const path = (loc.url || '').replace('/' + this.traverser.getPrefix(), '');
+            const path = (loc.url || '').replace(this.traverser.getPrefix(), '');
             this.traverser.traverse(path || '/', false); // when empty string traverse to root
         });
     }
diff --git a/projects/traversal/src/lib/traverser.ts b/projects/traversal/src/lib/traverser.ts
index 7f2eb0c..5dd088b 100644
--- a/projects/traversal/src/lib/traverser.ts
+++ b/projects/traversal/src/lib/traverser.ts
@@ -355,6 +355,6 @@ export class Traverser {
     }
 
     setPrefix(prefix: string) {
-        this.prefix.next(prefix);
+        this.prefix.next(prefix.startsWith('/') ? prefix : `/${prefix}`);
     }
 }