diff --git a/lib/Makefile.m32 b/lib/Makefile.m32
index 6b9726e36f..1b8a9675fb 100644
--- a/lib/Makefile.m32
+++ b/lib/Makefile.m32
@@ -29,7 +29,7 @@ LIBSSH2_PATH = ../../libssh2-0.18
 endif
 # Edit the path below to point to the base of your libidn package.
 ifndef LIBIDN_PATH
-LIBIDN_PATH = ../../libidn-1.9
+LIBIDN_PATH = ../../libidn-1.11
 endif
 # Edit the path below to point to the base of your Novell LDAP NDK.
 ifndef LDAP_SDK
diff --git a/lib/Makefile.netware b/lib/Makefile.netware
index a1f3ff1eeb..80476ef0c7 100644
--- a/lib/Makefile.netware
+++ b/lib/Makefile.netware
@@ -30,7 +30,7 @@ endif
 
 # Edit the path below to point to the base of your libidn package.
 ifndef LIBIDN_PATH
-LIBIDN_PATH = ../../libidn-1.9
+LIBIDN_PATH = ../../libidn-1.11
 endif
 
 ifndef INSTDIR
diff --git a/src/Makefile.m32 b/src/Makefile.m32
index b4088885d5..857606aefc 100644
--- a/src/Makefile.m32
+++ b/src/Makefile.m32
@@ -29,7 +29,7 @@ LIBSSH2_PATH = ../../libssh2-0.18
 endif
 # Edit the path below to point to the base of your libidn package.
 ifndef LIBIDN_PATH
-LIBIDN_PATH = ../../libidn-1.9
+LIBIDN_PATH = ../../libidn-1.11
 endif
 # Edit the path below to point to the base of your Novell LDAP NDK.
 ifndef LDAP_SDK
diff --git a/src/Makefile.netware b/src/Makefile.netware
index 25e2115ea7..1ec0b82548 100644
--- a/src/Makefile.netware
+++ b/src/Makefile.netware
@@ -30,7 +30,7 @@ endif
 
 # Edit the path below to point to the base of your libidn package.
 ifndef LIBIDN_PATH
-LIBIDN_PATH = ../../libidn-1.9
+LIBIDN_PATH = ../../libidn-1.11
 endif
 
 ifndef INSTDIR