diff --git a/winsup/cygserver/autogen.sh b/winsup/cygserver/autogen.sh
index 87a0d9c06..dc2c8b70a 100755
--- a/winsup/cygserver/autogen.sh
+++ b/winsup/cygserver/autogen.sh
@@ -1,4 +1,4 @@
 #!/bin/sh -e
-/usr/bin/aclocal --acdir=..
+/usr/bin/aclocal --system-acdir=..
 /usr/bin/autoconf -f
 exec /bin/rm -rf autom4te.cache
diff --git a/winsup/cygwin/autogen.sh b/winsup/cygwin/autogen.sh
index 87a0d9c06..dc2c8b70a 100755
--- a/winsup/cygwin/autogen.sh
+++ b/winsup/cygwin/autogen.sh
@@ -1,4 +1,4 @@
 #!/bin/sh -e
-/usr/bin/aclocal --acdir=..
+/usr/bin/aclocal --system-acdir=..
 /usr/bin/autoconf -f
 exec /bin/rm -rf autom4te.cache
diff --git a/winsup/utils/autogen.sh b/winsup/utils/autogen.sh
index 87a0d9c06..dc2c8b70a 100755
--- a/winsup/utils/autogen.sh
+++ b/winsup/utils/autogen.sh
@@ -1,4 +1,4 @@
 #!/bin/sh -e
-/usr/bin/aclocal --acdir=..
+/usr/bin/aclocal --system-acdir=..
 /usr/bin/autoconf -f
 exec /bin/rm -rf autom4te.cache