diff --git a/configs/olimex_a20_olinuxino_lime2_defconfig b/configs/olimex_a20_olinuxino_lime2_defconfig
index 6daa27b631..eb6a82c2f6 100644
--- a/configs/olimex_a20_olinuxino_lime2_defconfig
+++ b/configs/olimex_a20_olinuxino_lime2_defconfig
@@ -6,6 +6,10 @@ BR2_ARM_EABIHF=y
 # Linux headers same as kernel, a 5.4 series
 BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_4=y
 
+# Toolchain
+# glibc is needed for sunxi-mali-mainline-package.
+BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
+
 # System configuration
 BR2_TARGET_GENERIC_HOSTNAME="a20-olinuxino"
 BR2_TARGET_GENERIC_ISSUE="Welcome to OLinuXino!"
diff --git a/configs/olimex_a20_olinuxino_lime_defconfig b/configs/olimex_a20_olinuxino_lime_defconfig
index bb555005e9..740fd4357a 100644
--- a/configs/olimex_a20_olinuxino_lime_defconfig
+++ b/configs/olimex_a20_olinuxino_lime_defconfig
@@ -6,6 +6,10 @@ BR2_ARM_EABIHF=y
 # Linux headers same as kernel, a 5.4 series
 BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_4=y
 
+# Toolchain
+# glibc is needed for sunxi-mali-mainline-package.
+BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
+
 # System configuration
 BR2_TARGET_GENERIC_HOSTNAME="a20-olinuxino"
 BR2_TARGET_GENERIC_ISSUE="Welcome to OLinuXino!"