diff --git a/samples/crypto/ecdsa/prj.conf b/samples/crypto/ecdsa/prj.conf
index 1e91ac191df6..1eb141e4fe62 100644
--- a/samples/crypto/ecdsa/prj.conf
+++ b/samples/crypto/ecdsa/prj.conf
@@ -19,3 +19,6 @@ CONFIG_PSA_WANT_ALG_ECDSA=y
 CONFIG_PSA_WANT_KEY_TYPE_ECC_KEY_PAIR=y
 CONFIG_PSA_WANT_ECC_SECP_R1_256=y
 CONFIG_PSA_WANT_ALG_SHA_256=y
+
+# For key generation
+CONFIG_PSA_WANT_GENERATE_RANDOM=y