diff --git a/meta-digi-dey/recipes-qt/qt5/qtbase/ccimx6ul/0001-gcc-base.conf-optimize-for-size.patch b/meta-digi-dey/recipes-qt/qt5/qtbase/ccimx6ul/0001-gcc-base.conf-optimize-for-size.patch
deleted file mode 100644
index 7ad545e8a..000000000
--- a/meta-digi-dey/recipes-qt/qt5/qtbase/ccimx6ul/0001-gcc-base.conf-optimize-for-size.patch
+++ /dev/null
@@ -1,24 +0,0 @@
-From: Javier Viguera <javier.viguera@digi.com>
-Date: Thu, 3 Aug 2017 15:21:21 +0200
-Subject: [PATCH] gcc-base.conf: optimize for size
-
-Signed-off-by: Javier Viguera <javier.viguera@digi.com>
----
- mkspecs/common/gcc-base.conf | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/mkspecs/common/gcc-base.conf b/mkspecs/common/gcc-base.conf
-index 6e043f558f1c..e77fb93326d4 100644
---- a/mkspecs/common/gcc-base.conf
-+++ b/mkspecs/common/gcc-base.conf
-@@ -31,8 +31,8 @@
- # you can use the manual test in tests/manual/mkspecs.
- #
- 
--QMAKE_CFLAGS_OPTIMIZE      = -O2
--QMAKE_CFLAGS_OPTIMIZE_FULL = -O3
-+QMAKE_CFLAGS_OPTIMIZE      = -Os
-+QMAKE_CFLAGS_OPTIMIZE_FULL = -Os
- 
- QMAKE_CFLAGS               += -pipe
- QMAKE_CFLAGS_DEPS          += -M
diff --git a/meta-digi-dey/recipes-qt/qt5/qtbase_%.bbappend b/meta-digi-dey/recipes-qt/qt5/qtbase_%.bbappend
index 58da3e060..81987bfeb 100644
--- a/meta-digi-dey/recipes-qt/qt5/qtbase_%.bbappend
+++ b/meta-digi-dey/recipes-qt/qt5/qtbase_%.bbappend
@@ -3,12 +3,13 @@
 FILESEXTRAPATHS_prepend := "${THISDIR}/${BPN}:"
 
 SRC_URI_append = " file://qt5.sh"
-SRC_URI_append_ccimx6ul = " file://0001-gcc-base.conf-optimize-for-size.patch"
 
 PACKAGECONFIG_append = " accessibility examples fontconfig sql-sqlite"
 PACKAGECONFIG_append_ccimx6 = " icu"
 PACKAGECONFIG_append_ccimx6ul = " linuxfb"
 
+QT_CONFIG_FLAGS += " -optimize-size"
+
 do_install_append() {
 	install -d ${D}${sysconfdir}/profile.d
 	install -m 0755 ${WORKDIR}/qt5.sh ${D}${sysconfdir}/profile.d/