diff --git a/openapi_core/templating/util.py b/openapi_core/templating/util.py
index 863c6017..ef5dfa71 100644
--- a/openapi_core/templating/util.py
+++ b/openapi_core/templating/util.py
@@ -15,7 +15,7 @@ def _handle_field(self, field: str) -> Any:
 
 class PathParameter:
     name = "PathParameter"
-    pattern = r"[^\/]+"
+    pattern = r"[^\/]*"
 
     def __call__(self, text: str) -> str:
         return text
diff --git a/tests/unit/templating/test_paths_finders.py b/tests/unit/templating/test_paths_finders.py
index 13240112..17396d1a 100644
--- a/tests/unit/templating/test_paths_finders.py
+++ b/tests/unit/templating/test_paths_finders.py
@@ -217,7 +217,7 @@ def test_simple(self, finder, spec):
 
 
 class BaseTestVariableValid:
-    @pytest.mark.parametrize("version", ["v1", "v2"])
+    @pytest.mark.parametrize("version", ["v1", "v2", ""])
     def test_variable(self, finder, spec, version):
         method = "get"
         full_url = f"http://petstore.swagger.io/{version}/resource"