diff --git a/Examples/test-suite/cpp20_lambda_template.i b/Examples/test-suite/cpp20_lambda_template.i
index 948364f42..5672bd1b7 100644
--- a/Examples/test-suite/cpp20_lambda_template.i
+++ b/Examples/test-suite/cpp20_lambda_template.i
@@ -2,7 +2,7 @@
 
 // We just want to test that SWIG doesn't choke parsing this so suppress:
 // Warning 340: Lambda expressions and closures are not fully supported yet.
-%warnfilter(WARN_CPP11_LAMBDA);
+%warnfilter(SWIGWARN_CPP11_LAMBDA);
 
 %include <std_vector.i>