diff --git a/m4/slibtool.m4 b/m4/slibtool.m4
index c10ea29..123be89 100644
--- a/m4/slibtool.m4
+++ b/m4/slibtool.m4
@@ -462,7 +462,6 @@ LIBTOOL='$(SLIBTOOL)'
 AC_SUBST([LIBTOOL])
 AC_SUBST([SLIBTOOL])
 AC_SUBST([SLIBTOOL_SYSROOT])
-m4_define([SLIBTOOL_INIT])
 ])