diff -pruN 2.5.4-6/debian/changelog 2.5.4-7/debian/changelog
--- 2.5.4-6/debian/changelog	2025-10-20 15:59:20.000000000 +0000
+++ 2.5.4-7/debian/changelog	2025-10-21 11:49:42.000000000 +0000
@@ -1,3 +1,10 @@
+libtool (2.5.4-7) unstable; urgency=medium
+
+  * Fix libtool automake dependency handling. Thanks to Santiago Vila.
+    Closes: #1118477
+
+ -- Alastair McKinstry <mckinstry@debian.org>  Tue, 21 Oct 2025 12:49:42 +0100
+
 libtool (2.5.4-6) unstable; urgency=medium
 
   * Depend on automake >= 1.18. Closes: #1118312
diff -pruN 2.5.4-6/debian/rules 2.5.4-7/debian/rules
--- 2.5.4-6/debian/rules	2025-10-20 15:59:20.000000000 +0000
+++ 2.5.4-7/debian/rules	2025-10-21 10:12:49.000000000 +0000
@@ -241,7 +241,7 @@ binary-arch: build-arch install
 	dh_installdeb -a
 	dh_shlibdeps -a
 	rm -f debian/libltdl-dev.substvars
-	echo 'automake=automake-${AM_VERSION}' > debian/libltdl-dev.substvars
+	echo 'automake=automake (>= ${AM_VERSION})' > debian/libltdl-dev.substvars
 	dh_gencontrol -a
 	dh_md5sums -a
 	dh_builddeb -a