diff --git a/package/mender-update-modules/Config.in b/package/mender-update-modules/Config.in
index 1158bb42b2..88e0805976 100644
--- a/package/mender-update-modules/Config.in
+++ b/package/mender-update-modules/Config.in
@@ -173,6 +173,8 @@ config BR2_PACKAGE_MENDER_UPDATE_MODULES_REBOOT
 
 config BR2_PACKAGE_MENDER_UPDATE_MODULES_ROOTFS_VERSION_CHECK
 	bool "rootfs version check"
+	depends on BR2_USE_WCHAR # python3
+	depends on BR2_USE_MMU # python3
 	depends on BR2_TOOLCHAIN_HAS_THREADS # python3
 	depends on !BR2_STATIC_LIBS # python3
 	select BR2_PACKAGE_PYTHON3 # runtime
@@ -195,8 +197,10 @@ config BR2_PACKAGE_MENDER_UPDATE_MODULES_ROOTFS_VERSION_CHECK
 
 	  https://github.com/mendersoftware/mender-update-modules/tree/master/rootfs-version-check
 
-comment "rootfs version check needs a toolchain w/ threads"
-	depends on !BR2_TOOLCHAIN_HAS_THREADS || BR2_STATIC_LIBS
+comment "rootfs version check needs a toolchain w/ threads, dynamic library, wchar"
+	depends on BR2_USE_MMU
+	depends on !BR2_TOOLCHAIN_HAS_THREADS || BR2_STATIC_LIBS || \
+		!BR2_USE_WCHAR
 
 config BR2_PACKAGE_MENDER_UPDATE_MODULES_RPM
 	bool "rpm"