diff --git a/glibc.changes b/glibc.changes
index fb36d33..4d8f6b6 100644
--- a/glibc.changes
+++ b/glibc.changes
@@ -1,3 +1,6 @@
+* Sat Mar 08 2014 Davide Bettio <davide.bettio@ispirata.com> - 2.18
+- Do not build glibc for mipsel with -O3 enabled
+
 * Wed Jan 01 2014 Carsten Munk <carsten.munk@jollamobile.com> - 2.18
 - Upgrade to 2.18
 
diff --git a/glibc.spec b/glibc.spec
index cbcd393..6cb15fa 100644
--- a/glibc.spec
+++ b/glibc.spec
@@ -266,7 +266,11 @@ mkdir $builddir ; cd $builddir
 echo libdir=/usr/lib > configparms
 echo slibdir=/lib >> configparms
 echo BUILD_CC=gcc >> configparms
+%ifarch mipsel
+build_CFLAGS="$BuildFlags -g -O1 $*"
+%else
 build_CFLAGS="$BuildFlags -g -O3 $*"
+%endif
 export MAKEINFO=:
 ../configure CC="$GCC" CXX="$GXX" CFLAGS="$build_CFLAGS" \
 	--prefix=%{_prefix} \