diff --git a/Sources/_OpenAPIGeneratorCore/Translator/Operations/OperationDescription.swift b/Sources/_OpenAPIGeneratorCore/Translator/Operations/OperationDescription.swift
index c56b94a7..aea727dc 100644
--- a/Sources/_OpenAPIGeneratorCore/Translator/Operations/OperationDescription.swift
+++ b/Sources/_OpenAPIGeneratorCore/Translator/Operations/OperationDescription.swift
@@ -248,7 +248,7 @@ extension OperationDescription {
     /// The regular expression for parsing subcomponents of path components.
     ///
     /// Either a parameter `{foo}` or a constant value `foo`.
-    private static let pathParameterRegex = try! NSRegularExpression(pattern: #"(\{[a-zA-Z0-9_-]+\})|([^{}]+)"#)
+    private static let pathParameterRegex = try! NSRegularExpression(pattern: #"(\{[a-zA-Z0-9_\-\.]+\})|([^{}]+)"#)
 
     /// Returns a string that contains the template to be generated for
     /// the client that fills in path parameters, and an array expression
diff --git a/Tests/OpenAPIGeneratorReferenceTests/SnippetBasedReferenceTests.swift b/Tests/OpenAPIGeneratorReferenceTests/SnippetBasedReferenceTests.swift
index 76be230a..0196c5ee 100644
--- a/Tests/OpenAPIGeneratorReferenceTests/SnippetBasedReferenceTests.swift
+++ b/Tests/OpenAPIGeneratorReferenceTests/SnippetBasedReferenceTests.swift
@@ -2697,13 +2697,13 @@ final class SnippetBasedReferenceTests: XCTestCase {
         )
     }
 
-    func testRequestWithPathParamWithHyphen() throws {
+    func testRequestWithPathParamWithHyphenAndPeriod() throws {
         try self.assertRequestInTypesClientServerTranslation(
             """
-            /foo/{a-b}:
+            /foo/{p.a-b}:
               get:
                 parameters:
-                  - name: a-b
+                  - name: p.a-b
                     in: path
                     required: true
                     schema:
@@ -2716,9 +2716,9 @@ final class SnippetBasedReferenceTests: XCTestCase {
             types: """
                 public struct Input: Sendable, Hashable {
                     public struct Path: Sendable, Hashable {
-                        public var a_hyphen_b: Swift.String
-                        public init(a_hyphen_b: Swift.String) {
-                            self.a_hyphen_b = a_hyphen_b
+                        public var p_period_a_hyphen_b: Swift.String
+                        public init(p_period_a_hyphen_b: Swift.String) {
+                            self.p_period_a_hyphen_b = p_period_a_hyphen_b
                         }
                     }
                     public var path: Operations.getFoo.Input.Path
@@ -2732,7 +2732,7 @@ final class SnippetBasedReferenceTests: XCTestCase {
                     let path = try converter.renderedPath(
                         template: "/foo/{}",
                         parameters: [
-                            input.path.a_hyphen_b
+                            input.path.p_period_a_hyphen_b
                         ]
                     )
                     var request: HTTPTypes.HTTPRequest = .init(
@@ -2745,9 +2745,9 @@ final class SnippetBasedReferenceTests: XCTestCase {
                 """,
             server: """
                 { request, requestBody, metadata in
-                    let path: Operations.getFoo.Input.Path = .init(a_hyphen_b: try converter.getPathParameterAsURI(
+                    let path: Operations.getFoo.Input.Path = .init(p_period_a_hyphen_b: try converter.getPathParameterAsURI(
                         in: metadata.pathParameters,
-                        name: "a-b",
+                        name: "p.a-b",
                         as: Swift.String.self
                     ))
                     return Operations.getFoo.Input(path: path)