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-rw-r--r--src/libutil/config.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libutil/config.cc b/src/libutil/config.cc
index 026db6574..92ab265d3 100644
--- a/src/libutil/config.cc
+++ b/src/libutil/config.cc
@@ -322,7 +322,7 @@ template<> void BaseSetting<std::set<ExperimentalFeature>>::set(const std::strin
if (thisXpFeature)
value.insert(thisXpFeature.value());
else
- warn("Unknown experimental feature %s", s);
+ warn("unknown experimental feature '%s'", s);
}
}