diff --git a/INSTALL b/INSTALL
index 94616ca..ab3af1b 100644
--- a/INSTALL
+++ b/INSTALL
@@ -12,7 +12,7 @@ in combination with the kernel's Kbuild system.
 Supported configurations for this release
 =========================================
 
-	* iptables >= 1.4.3
+	* iptables >= 1.4.5
 
 	* kernel-source >= 2.6.29
 	  with prepared build/output directory
diff --git a/configure.ac b/configure.ac
index c51a6b4..c7431a4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -22,7 +22,7 @@ fi
 
 AC_CHECK_HEADERS([linux/netfilter/x_tables.h], [],
 	[AC_MSG_ERROR([You need to have linux/netfilter/x_tables.h, see INSTALL file for details])])
-PKG_CHECK_MODULES([libxtables], [xtables >= 1.4.3])
+PKG_CHECK_MODULES([libxtables], [xtables >= 1.4.5])
 xtlibdir="$(pkg-config --variable=xtlibdir xtables)"
 PKG_CHECK_MODULES([libmnl], [libmnl >= 1], [:], [:])
 
diff --git a/doc/changelog.txt b/doc/changelog.txt
index 655e547..c5298ff 100644
--- a/doc/changelog.txt
+++ b/doc/changelog.txt
@@ -1,6 +1,9 @@
 
 HEAD
 ====
+Fixes:
+- build: the code actually requires at least iptables 1.4.5 (would yield a
+  compile error otherwise), make sure configure checks for it; update INSTALL
 
 
 v1.39 (2011-09-21)