diff --git a/configure.in b/configure.in
index f8aa7439970cb08c87057e94f7bf3688723ad26c..4f8403a7cabc80dd89925dc72dc0feb9359dcb58 100644
--- a/configure.in
+++ b/configure.in
@@ -4,7 +4,6 @@ AC_INIT(JSBSim.cpp, 1.0.rc3-advtrim-7, jon@jsbsim.org)
 dnl set the $host variable based on local machine/os
 AC_CANONICAL_TARGET
 
-AC_CONFIG_AUX_DIR([m4])
 AM_INIT_AUTOMAKE(jsbsim, 1.0.rc3-advtrim-7)
 AC_CONFIG_MACRO_DIR([m4])