diff --git a/build.py b/build.py
index b1c0f6b..a2bbaa6 100644
--- a/build.py
+++ b/build.py
@@ -111,7 +111,7 @@
 
 lib_build_args = [
     COMPILER, '-Iinclude',
-    '-shared', '-o',
+    '-Ilib', '-shared', '-o',
     lib_bin,
     rt_bin
 ]