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-rw-r--r--src/expression.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/expression.c b/src/expression.c
index 58d73e95..a90a89ca 100644
--- a/src/expression.c
+++ b/src/expression.c
@@ -560,6 +560,7 @@ const char *expr_op_symbols[] = {
[OP_GT] = ">",
[OP_LTE] = "<=",
[OP_GTE] = ">=",
+ [OP_NEG] = "!",
};
static void unary_expr_print(const struct expr *expr, struct output_ctx *octx)