diff --git a/trunk/hsm_utils/Makefile b/trunk/hsm_utils/Makefile
index e179b05..4aaadbc 100644
--- a/trunk/hsm_utils/Makefile
+++ b/trunk/hsm_utils/Makefile
@@ -123,7 +123,7 @@ TARGETS_SIMPLE=	\
 	import_aes_key \
 	import_rsa_keypair \
 	import_ecdsa_keypair \
-	sign_verify_rsa_pkcs1_sha256.c \
+	sign_verify_rsa_pkcs1_sha256 \
 
 simple:	$(TARGETS_SIMPLE)