diff --git a/CHANGES b/CHANGES
index ad68851..d8a4dbf 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+0.1.11 (2010-04-19)
+    - Fixed another bug in aggregation (-A) mode, thanks to Dmitry Tejblum.
+
 0.1.10 (2009-06-13)
     - Fixed bug in aggregation (-A) mode, thanks to Sergey Gonchar. 
 
diff --git a/configure b/configure
index 3cc7263..a7fa69f 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.62 for bgpq3 0.1.9.
+# Generated by GNU Autoconf 2.62 for bgpq3 0.1.11.
 #
 # Report bugs to <snar@snar.spb.ru>.
 #
@@ -596,8 +596,8 @@ SHELL=${CONFIG_SHELL-/bin/sh}
 # Identity of this package.
 PACKAGE_NAME='bgpq3'
 PACKAGE_TARNAME='bgpq3'
-PACKAGE_VERSION='0.1.9'
-PACKAGE_STRING='bgpq3 0.1.9'
+PACKAGE_VERSION='0.1.11'
+PACKAGE_STRING='bgpq3 0.1.11'
 PACKAGE_BUGREPORT='snar@snar.spb.ru'
 
 ac_subst_vars='SHELL
@@ -1213,7 +1213,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures bgpq3 0.1.9 to adapt to many kinds of systems.
+\`configure' configures bgpq3 0.1.11 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1274,7 +1274,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of bgpq3 0.1.9:";;
+     short | recursive ) echo "Configuration of bgpq3 0.1.11:";;
    esac
   cat <<\_ACEOF
 
@@ -1353,7 +1353,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-bgpq3 configure 0.1.9
+bgpq3 configure 0.1.11
 generated by GNU Autoconf 2.62
 
 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
@@ -1367,7 +1367,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by bgpq3 $as_me 0.1.9, which was
+It was created by bgpq3 $as_me 0.1.11, which was
 generated by GNU Autoconf 2.62.  Invocation command line was
 
   $ $0 $@
@@ -3465,7 +3465,7 @@ exec 6>&1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by bgpq3 $as_me 0.1.9, which was
+This file was extended by bgpq3 $as_me 0.1.11, which was
 generated by GNU Autoconf 2.62.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -3514,7 +3514,7 @@ Report bugs to <bug-autoconf@gnu.org>."
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_version="\\
-bgpq3 config.status 0.1.9
+bgpq3 config.status 0.1.11
 configured by $0, generated by GNU Autoconf 2.62,
   with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"
 
diff --git a/configure.in b/configure.in
index ceae394..a033636 100644
--- a/configure.in
+++ b/configure.in
@@ -1,4 +1,4 @@
-AC_INIT(bgpq3,0.1.9,snar@snar.spb.ru)
+AC_INIT(bgpq3,0.1.11,snar@snar.spb.ru)
 AC_CONFIG_HEADER(config.h)
 AC_PROG_CC
 AC_PROG_INSTALL
diff --git a/sx_prefix.c b/sx_prefix.c
index 7dc144c..56f8bfd 100644
--- a/sx_prefix.c
+++ b/sx_prefix.c
@@ -539,7 +539,8 @@ sx_radix_node_aggregate(struct sx_radix_node* node)
 		} else if(node->r->isAggregate && node->l->isAggregate && 
 			node->r->aggregateHi==node->l->aggregateHi && 
 			node->r->aggregateLow==node->l->aggregateLow) { 
-			if(node->r->prefix.masklen==node->prefix.masklen+1) { 
+			if(node->r->prefix.masklen==node->prefix.masklen+1 &&
+				node->l->prefix.masklen==node->prefix.masklen+1) { 
 				if(node->isGlue) { 
 					node->r->isGlue=1;
 					node->l->isGlue=1;
@@ -579,7 +580,8 @@ sx_radix_node_aggregate(struct sx_radix_node* node)
 			node->r->isAggregate && node->l->son->isAggregate && 
 			node->r->aggregateHi==node->l->son->aggregateHi && 
 			node->r->aggregateLow==node->l->son->aggregateLow) { 
-			if(node->r->prefix.masklen==node->prefix.masklen+1) { 
+			if(node->r->prefix.masklen==node->prefix.masklen+1 &&
+				node->l->prefix.masklen==node->prefix.masklen+1) { 
 				if(node->isGlue) { 
 					node->r->isGlue=1;
 					node->l->son->isGlue=1;
@@ -601,7 +603,8 @@ sx_radix_node_aggregate(struct sx_radix_node* node)
 			node->l->isAggregate && node->r->son->isAggregate && 
 			node->l->aggregateHi==node->r->son->aggregateHi && 
 			node->l->aggregateLow==node->r->son->aggregateLow) { 
-			if(node->l->prefix.masklen==node->prefix.masklen+1) { 
+			if(node->l->prefix.masklen==node->prefix.masklen+1 &&
+				node->r->prefix.masklen==node->prefix.masklen+1) { 
 				if(node->isGlue) { 
 					node->l->isGlue=1;
 					node->r->son->isGlue=1;