diff --git a/board/stmicroelectronics/stm32f769-disco/uclibc-fragment.config b/board/stmicroelectronics/stm32f769-disco/uclibc-fragment.config
new file mode 100644
index 000000000000..fb8fa9ee01c3
--- /dev/null
+++ b/board/stmicroelectronics/stm32f769-disco/uclibc-fragment.config
@@ -0,0 +1,2 @@
+# MALLOC is not set
+MALLOC_SIMPLE=y
diff --git a/configs/stm32f769_disco_sd_defconfig b/configs/stm32f769_disco_sd_defconfig
index 065d5b59bf6d..d09b81b19b3e 100644
--- a/configs/stm32f769_disco_sd_defconfig
+++ b/configs/stm32f769_disco_sd_defconfig
@@ -1,6 +1,7 @@
 BR2_arm=y
 BR2_cortex_m7=y
 BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_15=y
+BR2_UCLIBC_CONFIG_FRAGMENT_FILES="board/stmicroelectronics/stm32f769-disco/uclibc-fragment.config"
 BR2_GLOBAL_PATCH_DIR="board/stmicroelectronics/stm32f769-disco/patches"
 BR2_DOWNLOAD_FORCE_CHECK_HASHES=y
 BR2_ROOTFS_POST_BUILD_SCRIPT="board/stmicroelectronics/stm32f769-disco/post-build.sh"