diff --git a/script/build-lib b/script/build-lib
index be287db0..da4d1019 100755
--- a/script/build-lib
+++ b/script/build-lib
@@ -18,5 +18,6 @@ ${CC}                   \
   lib/src/lib.c     \
   -o tree-sitter.o
 
+rm libtree-sitter.a
 ar rcs libtree-sitter.a tree-sitter.o
 rm tree-sitter.o