diff --git a/package/mongodb/Config.in b/package/mongodb/Config.in
index 7665c86483..2f6876a199 100644
--- a/package/mongodb/Config.in
+++ b/package/mongodb/Config.in
@@ -1,8 +1,9 @@
 # from src/mongo/platform/bits.h
 config BR2_PACKAGE_MONGODB_ARCH_SUPPORTS
 	bool
-	default y if BR2_aarch64 || BR2_arm ||  \
-		BR2_i386 || BR2_powerpc64 || BR2_x86_64
+	# ARM needs LDREX/STREX, so ARMv6+
+	default y if BR2_arm && !BR2_ARM_CPU_ARMV4 && !BR2_ARM_CPU_ARMV5
+	default y if BR2_aarch64 || BR2_i386 || BR2_powerpc64 || BR2_x86_64
 
 config BR2_PACKAGE_MONGODB
 	bool "mongodb"