diff --git a/ChangeLog b/ChangeLog
index 2a8e649b3..a54d84132 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2013-08-22  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* configure.ac: Don't change host_os from mingw to cygwin.
+
 2013-08-22  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	* configure.ac: Change target_os from windows to cygwin.
diff --git a/configure.ac b/configure.ac
index a90bf0093..7a927f174 100644
--- a/configure.ac
+++ b/configure.ac
@@ -168,10 +168,6 @@ case "$target_cpu" in
   x86_64 | sparc64) target_m64=1 ;;
 esac
 
-case "$host_os" in
-  mingw32*) host_os=cygwin ;;
-esac
-
 case "$target_os" in
   windows* | mingw32*) target_os=cygwin ;;
 esac