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-rw-r--r--libsolidity/grammar.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/libsolidity/grammar.txt b/libsolidity/grammar.txt
index 66cb1dfb..97a9ad39 100644
--- a/libsolidity/grammar.txt
+++ b/libsolidity/grammar.txt
@@ -70,7 +70,7 @@ Expression =
| Expression '||' Expression
| Expression '?' Expression ':' Expression
| Expression ('=' | '|=' | '^=' | '&=' | '<<=' | '>>=' | '+=' | '-=' | '*=' | '/=' | '%=') Expression
- | Expression? ',' Expression?
+ | Expression? (',' Expression)?
| PrimaryExpression
PrimaryExpression = Identifier | BooleanLiteral | NumberLiteral | StringLiteral