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-rw-r--r--src/runtime/c/pgf/parser.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/runtime/c/pgf/parser.c b/src/runtime/c/pgf/parser.c
index 57a714fca..d1afcecac 100644
--- a/src/runtime/c/pgf/parser.c
+++ b/src/runtime/c/pgf/parser.c
@@ -2259,7 +2259,7 @@ gu_fullform_enum_next(GuEnum* self, void* to, GuPool* pool)
PgfSequence* seq = gu_seq_index(st->sequences, PgfSequence, st->seq_idx);
GuString tokens = pgf_get_tokens(seq->syms, 0, pool);
- if (gu_string_is_prefix(st->prefix, tokens) != 0) {
+ if (!gu_string_is_prefix(st->prefix, tokens)) {
st->seq_idx = n_seqs;
break;
}