diff --git a/include/tree_sitter/parser.h b/include/tree_sitter/parser.h
index 4772eec6..b1682101 100644
--- a/include/tree_sitter/parser.h
+++ b/include/tree_sitter/parser.h
@@ -45,7 +45,7 @@ typedef struct {
     };
     struct {
       TSSymbol symbol;
-      uint16_t dynamic_precedence;
+      int16_t dynamic_precedence;
       uint8_t child_count;
       uint8_t rename_sequence_id : 7;
       bool fragile : 1;