diff --git a/mathlib.h b/mathlib.h
new file mode 100644
index 00000000..2adb2de9
--- /dev/null
+++ b/mathlib.h
@@ -0,0 +1,13 @@
+/*
+** Math library to LUA
+** TeCGraf - PUC-Rio
+** $Id: $
+*/
+
+
+#ifndef strlib_h
+
+void mathlib_open (void);
+
+#endif
+