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-rw-r--r--src/string.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/string.cc b/src/string.cc
index 02e79f3f..df360ae0 100644
--- a/src/string.cc
+++ b/src/string.cc
@@ -229,7 +229,7 @@ String format(StringView fmt, ArrayView<const StringView> params)
if (opening == end)
break;
- if (opening != it && res.back() == '\\')
+ if (opening != it && *(opening-1) == '\\')
{
res.back() = '{';
it = opening + 1;