diff --git a/configure.ac b/configure.ac
index 144c857e4..de7f6b45a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -32,7 +32,7 @@ AC_ARG_PROGRAM
 
 AC_CONFIG_HEADERS([config.h:config.in])
 
-LT_PREREQ([2.4.2])
+LT_PREREQ([2.4])
 LT_INIT([disable-static win32-dll])
 
 #shared library versioning
