diff --git a/src/chip.cs b/src/chip.cs
index 5728503e2053..784c04a3b972 100644
--- a/src/chip.cs
+++ b/src/chip.cs
@@ -1140,7 +1140,7 @@ interface ChipOperationalCredentials
 
 		[Async (ResultTypeName = "ChipReadAttributeResult")]
 		[Export ("opCSRRequest:responseHandler:")]
-		void OpCsRrequest (NSData csrNonce, ChipResponseHandler responseHandler);
+		void OpCsrRequest (NSData csrNonce, ChipResponseHandler responseHandler);
 
 		[Async (ResultTypeName = "ChipReadAttributeResult")]
 		[Export ("removeAllFabrics:")]