diff --git a/package/crun/Config.in b/package/crun/Config.in
index 1b69034459..f6a1ec7c66 100644
--- a/package/crun/Config.in
+++ b/package/crun/Config.in
@@ -1,5 +1,6 @@
 config BR2_PACKAGE_CRUN
 	bool "crun"
+	depends on BR2_USE_MMU # fork()
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # C11/stdatomic.h
 	select BR2_PACKAGE_ARGP_STANDALONE if !BR2_TOOLCHAIN_USES_GLIBC
 	select BR2_PACKAGE_YAJL # libocispec
@@ -9,5 +10,6 @@ config BR2_PACKAGE_CRUN
 	  https://github.com/containers/crun
 
 comment "crun needs a glibc or musl toolchain, gcc >= 4.9"
+	depends on BR2_USE_MMU
 	depends on BR2_TOOLCHAIN_USES_UCLIBC || \
 		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_9