diff --git a/icecat.spec b/icecat.spec
index 5750c85..a99ed1a 100644
--- a/icecat.spec
+++ b/icecat.spec
@@ -35,7 +35,7 @@
 
 Name:    icecat
 Version: 45.7.0
-Release: 3%{?dist}
+Release: 4%{?dist}
 Summary: GNU version of Firefox browser
 Group:   Applications/Internet
 
@@ -381,7 +381,7 @@ mkdir -p %{name}-objdir && pushd %{name}-objdir
  --disable-install-strip \
  --disable-tests \
  --with-branding=browser/branding/official \
-%ifarch %{arm}
+%ifarch %{arm} aarch64
  --disable-optimize
 %else
  --enable-optimize="$MOZ_OPT_FLAGS"
@@ -620,6 +620,9 @@ appstream-util validate-relax --nonet $RPM_BUILD_ROOT%{_datadir}/appdata/*.appda
 %exclude %{_includedir}/%{icecat_ver}/
 
 %changelog
+* Sat Feb 18 2017 Antonio Trande <sagitterATfedoraproject.org> 45.7.0-3
+- Optimization flags disabled on arm/arm64
+
 * Thu Feb 16 2017 Jens Lody <fedora@jenslody.de> - 45.7.0-3
 - Fix gcc7 build, with backport of fix for mozb#1269171
 
diff --git a/mozilla-1245076-1.patch b/mozilla-1245076-1.patch
deleted file mode 100644
index 9ed3c67..0000000
--- a/mozilla-1245076-1.patch
+++ /dev/null
@@ -1,36 +0,0 @@
---- a/config/gcc-stl-wrapper.template.h
-+++ b/config/gcc-stl-wrapper.template.h
-@@ -17,6 +17,10 @@
- // Silence "warning: #include_next is a GCC extension"
- #pragma GCC system_header
- 
-+#ifndef moz_dont_include_mozalloc_for_cstdlib
-+#  define moz_dont_include_mozalloc_for_cstdlib
-+#endif
-+#ifndef moz_dont_include_mozalloc_for_${HEADER}
- // mozalloc.h wants <new>; break the cycle by always explicitly
- // including <new> here.  NB: this is a tad sneaky.  Sez the gcc docs:
- //
-@@ -25,15 +29,17 @@
- //    same name as the current file. It simply looks for the file
- //    named, starting with the directory in the search path after the
- //    one where the current file was found.
--#include_next <new>
-+#  include_next <new>
- 
- // See if we're in code that can use mozalloc.  NB: this duplicates
- // code in nscore.h because nscore.h pulls in prtypes.h, and chromium
- // can't build with that being included before base/basictypes.h.
--#if !defined(XPCOM_GLUE) && !defined(NS_NO_XPCOM) && !defined(MOZ_NO_MOZALLOC)
--#  include "mozilla/mozalloc.h"
--#else
--#  error "STL code can only be used with infallible ::operator new()"
-+#  if !defined(XPCOM_GLUE) && !defined(NS_NO_XPCOM) && !defined(MOZ_NO_MOZALLOC)
-+#    include "mozilla/mozalloc.h"
-+#  else
-+#    error "STL code can only be used with infallible ::operator new()"
-+#  endif
-+
- #endif
- 
- #if defined(DEBUG) && !defined(_GLIBCXX_DEBUG)