diff --git a/fcitx.changes b/fcitx.changes
index 86609ca..10138be 100644
--- a/fcitx.changes
+++ b/fcitx.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Feb  8 17:40:06 UTC 2013 - i@marguerite.su
+
+- disable DENABLE_DEBUG to avoid polluting .xsession-errors. (bnc#802866)
+
 -------------------------------------------------------------------
 Tue Feb  5 14:11:50 CET 2013 - mls@suse.de
 
diff --git a/fcitx.spec b/fcitx.spec
index 32f318b..2281b54 100644
--- a/fcitx.spec
+++ b/fcitx.spec
@@ -386,6 +386,7 @@ cd build
 
 # fix dlopen-ed library name
 cmake .. \
+		 -DCMAKE_BUILD_TYPE=Release \
 		 -DOPENCC_LIBRARY_FILENAME=libopencc.so.1 \
 		 -DENCHANT_LIBRARY_FILENAME=libenchant.so.1 \
 		 -DPRESAGE_LIBRARY_FILENAME=libpresage.so.1 \
@@ -400,7 +401,6 @@ cmake .. \
 %endif
          -DCMAKE_INSTALL_PREFIX=%{_prefix} \
          -DLIB_INSTALL_DIR=%{_libdir} \
-	     -DENABLE_DEBUG=On \
          -DENABLE_LUA=On
 
 # fix gobject-introspection build