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-rw-r--r--src/cpu/testers/traffic_gen/pygen.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cpu/testers/traffic_gen/pygen.cc b/src/cpu/testers/traffic_gen/pygen.cc
index ce1d59130..9ce2fbf83 100644
--- a/src/cpu/testers/traffic_gen/pygen.cc
+++ b/src/cpu/testers/traffic_gen/pygen.cc
@@ -74,7 +74,7 @@ PyTrafficGen::nextGenerator()
metaGenerator->cast<std::shared_ptr<BaseGen>>();
metaGenerator++;
return gen;
- } catch (py::cast_error) {
+ } catch (py::cast_error&) {
fatal("Meta generator didn't return a valid trace generator\n");
}
}