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-rw-r--r--src/libexpr/eval.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc
index 83be997e9..4cb2c7654 100644
--- a/src/libexpr/eval.cc
+++ b/src/libexpr/eval.cc
@@ -351,6 +351,7 @@ EvalState::EvalState(const Strings & _searchPath, ref<Store> store)
, sOutputHashMode(symbols.create("outputHashMode"))
, sDescription(symbols.create("description"))
, sSelf(symbols.create("self"))
+ , sEpsilon(symbols.create(""))
, repair(NoRepair)
, store(store)
, baseEnv(allocEnv(128))