diff --git a/configs/czechlight_beaglebone_defconfig b/configs/czechlight_beaglebone_defconfig
index 4787fcb..5307e28 100644
--- a/configs/czechlight_beaglebone_defconfig
+++ b/configs/czechlight_beaglebone_defconfig
@@ -1,9 +1,6 @@
 BR2_arm=y
 BR2_cortex_a8=y
 BR2_ARM_FPU_VFPV3=y
-BR2_KERNEL_MIRROR="http://ftp.fi.muni.cz/pub/linux/kernel/"
-BR2_GNU_MIRROR="http://ftp.fi.muni.cz/pub/gnu/"
-BR2_CPAN_MIRROR="http://ftp.fi.muni.cz/pub/CPAN/"
 BR2_TOOLCHAIN_EXTERNAL=y
 BR2_TARGET_GENERIC_HOSTNAME="czechlight"
 BR2_TARGET_GENERIC_ISSUE="Welcome to CzechLight"
diff --git a/configs/czechlight_clearfog_defconfig b/configs/czechlight_clearfog_defconfig
index 1f3ac8f..0588cd0 100644
--- a/configs/czechlight_clearfog_defconfig
+++ b/configs/czechlight_clearfog_defconfig
@@ -3,9 +3,6 @@
 BR2_ARM_ENABLE_NEON=y
 BR2_ARM_ENABLE_VFP=y
 BR2_ARM_FPU_NEON=y
-BR2_KERNEL_MIRROR="http://ftp.fi.muni.cz/pub/linux/kernel/"
-BR2_GNU_MIRROR="http://ftp.fi.muni.cz/pub/gnu/"
-BR2_CPAN_MIRROR="http://ftp.fi.muni.cz/pub/CPAN/"
 BR2_SSP_STRONG=y
 BR2_TOOLCHAIN_EXTERNAL=y
 BR2_TARGET_GENERIC_HOSTNAME="czechlight"
diff --git a/configs/czechlight_epia_geode_defconfig b/configs/czechlight_epia_geode_defconfig
index aabb497..5622fcd 100644
--- a/configs/czechlight_epia_geode_defconfig
+++ b/configs/czechlight_epia_geode_defconfig
@@ -1,7 +1,4 @@
 BR2_x86_i686=y
-BR2_KERNEL_MIRROR="http://ftp.fi.muni.cz/pub/linux/kernel/"
-BR2_GNU_MIRROR="http://ftp.fi.muni.cz/pub/gnu/"
-BR2_CPAN_MIRROR="http://ftp.fi.muni.cz/pub/CPAN/"
 BR2_OPTIMIZE_2=y
 BR2_SSP_STRONG=y
 BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
diff --git a/configs/czechlight_i686_container_defconfig b/configs/czechlight_i686_container_defconfig
index 27ed213..0b38511 100644
--- a/configs/czechlight_i686_container_defconfig
+++ b/configs/czechlight_i686_container_defconfig
@@ -1,7 +1,4 @@
 BR2_x86_i686=y
-BR2_KERNEL_MIRROR="http://ftp.fi.muni.cz/pub/linux/kernel/"
-BR2_GNU_MIRROR="http://ftp.fi.muni.cz/pub/gnu/"
-BR2_CPAN_MIRROR="http://ftp.fi.muni.cz/pub/CPAN/"
 BR2_CCACHE=y
 BR2_OPTIMIZE_2=y
 BR2_SSP_STRONG=y
diff --git a/configs/mirror.config b/configs/mirror.config
new file mode 100644
index 0000000..7d98c51
--- /dev/null
+++ b/configs/mirror.config
@@ -0,0 +1,3 @@
+BR2_KERNEL_MIRROR="http://ftp.fi.muni.cz/pub"
+BR2_GNU_MIRROR="http://ftp.fi.muni.cz/pub"
+BR2_CPAN_MIRROR="http://ftp.fi.muni.cz/pub"