diff --git a/index.d.ts b/index.d.ts
index 5199f608..c897a3fd 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -206,8 +206,8 @@ export interface HttpResponse {
 export interface HttpRequest {
     /** Returns the lowercased header value or empty string. */
     getHeader(lowerCaseKey: RecognizedString) : string;
-    /** Returns the parsed parameter at index. Corresponds to route. Can also take the name of the parameter. */
-    getParameter(index: number | RecognizedString) : string | undefined;
+    /** Returns the parsed parameter at index. Corresponds to route. */
+    getParameter(index: number) : string;
     /** Returns the URL including initial /slash */
     getUrl() : string;
     /** Returns the lowercased HTTP method, useful for "any" routes. */
diff --git a/source_commit b/source_commit
index 723e1e3b..d089415f 100644
--- a/source_commit
+++ b/source_commit
@@ -1 +1 @@
-4af87d37edf978055e00071baa993f2b16c64cdc
+6da4d74fc04bd5634ca4d6d0169fb30a38501b47
diff --git a/uws_linux_arm64_108.node b/uws_linux_arm64_108.node
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diff --git a/uws_linux_arm64_115.node b/uws_linux_arm64_115.node
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diff --git a/uws_linux_arm64_120.node b/uws_linux_arm64_120.node
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diff --git a/uws_linux_arm64_127.node b/uws_linux_arm64_127.node
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