diff --git a/lib/crypto/Kconfig b/lib/crypto/Kconfig
index 509bc28311..1c04a7ec5f 100644
--- a/lib/crypto/Kconfig
+++ b/lib/crypto/Kconfig
@@ -1,5 +1,6 @@
 menuconfig ASYMMETRIC_KEY_TYPE
 	bool "Asymmetric (public-key cryptographic) key Support"
+	depends on FIT_SIGNATURE
 	help
 	  This option provides support for a key type that holds the data for
 	  the asymmetric keys used for public key cryptographic operations such