diff --git a/configure b/configure
index 2f2b37e..0141bb3 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for seq2gif 0.10.1.
+# Generated by GNU Autoconf 2.69 for seq2gif 0.10.2.
 #
 # Report bugs to <user@zuse.jp>.
 #
@@ -579,8 +579,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='seq2gif'
 PACKAGE_TARNAME='seq2gif'
-PACKAGE_VERSION='0.10.1'
-PACKAGE_STRING='seq2gif 0.10.1'
+PACKAGE_VERSION='0.10.2'
+PACKAGE_STRING='seq2gif 0.10.2'
 PACKAGE_BUGREPORT='user@zuse.jp'
 PACKAGE_URL=''
 
@@ -1269,7 +1269,7 @@ 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 seq2gif 0.10.1 to adapt to many kinds of systems.
+\`configure' configures seq2gif 0.10.2 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1335,7 +1335,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of seq2gif 0.10.1:";;
+     short | recursive ) echo "Configuration of seq2gif 0.10.2:";;
    esac
   cat <<\_ACEOF
 
@@ -1433,7 +1433,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-seq2gif configure 0.10.1
+seq2gif configure 0.10.2
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -1986,7 +1986,7 @@ 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 seq2gif $as_me 0.10.1, which was
+It was created by seq2gif $as_me 0.10.2, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -2852,7 +2852,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='seq2gif'
- VERSION='0.10.1'
+ VERSION='0.10.2'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -5465,7 +5465,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by seq2gif $as_me 0.10.1, which was
+This file was extended by seq2gif $as_me 0.10.2, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -5531,7 +5531,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-seq2gif config.status 0.10.1
+seq2gif config.status 0.10.2
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
diff --git a/configure.ac b/configure.ac
index 544fb2a..ab11ee7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ([2.69])
-AC_INIT([seq2gif], [0.10.1], [user@zuse.jp])
+AC_INIT([seq2gif], [0.10.2], [user@zuse.jp])
 AC_CONFIG_SRCDIR([color.h])
 AC_CONFIG_HEADERS([config.h])
 AM_INIT_AUTOMAKE([foreign])
diff --git a/main.c b/main.c
index ad2968d..2b748d3 100644
--- a/main.c
+++ b/main.c
@@ -564,7 +564,7 @@ int main(int argc, char *argv[])
         }
         parse(&term, obuf, nread, &dirty);
         if (term.esc.state != STATE_DCS || dirty) {
-            delay += prev - now;
+            delay += now - prev;
             refresh(&pb, &term);
 
             /* take screenshot */
diff --git a/package.json b/package.json
index e1b55f7..115f6b1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "seq2gif",
-  "version": "0.10.1",
+  "version": "0.10.2",
   "repo": "saitoha/seq2gif",
   "description": "@PACKAGE_DESCRIPTION@",
   "keywords": ["terminal", "gif", "ttyrec"],