diff --git a/crypto/cipher-builtin.c b/crypto/cipher-builtin.c.inc
similarity index 100%
rename from crypto/cipher-builtin.c
rename to crypto/cipher-builtin.c.inc
diff --git a/crypto/cipher-gcrypt.c b/crypto/cipher-gcrypt.c.inc
similarity index 100%
rename from crypto/cipher-gcrypt.c
rename to crypto/cipher-gcrypt.c.inc
diff --git a/crypto/cipher-nettle.c b/crypto/cipher-nettle.c.inc
similarity index 100%
rename from crypto/cipher-nettle.c
rename to crypto/cipher-nettle.c.inc
diff --git a/crypto/cipher.c b/crypto/cipher.c
index 2722dc7d87..005b5da4de 100644
--- a/crypto/cipher.c
+++ b/crypto/cipher.c
@@ -151,11 +151,11 @@ qcrypto_cipher_munge_des_rfb_key(const uint8_t *key,
 #endif /* CONFIG_GCRYPT || CONFIG_NETTLE */
 
 #ifdef CONFIG_GCRYPT
-#include "cipher-gcrypt.c"
+#include "cipher-gcrypt.c.inc"
 #elif defined CONFIG_NETTLE
-#include "cipher-nettle.c"
+#include "cipher-nettle.c.inc"
 #else
-#include "cipher-builtin.c"
+#include "cipher-builtin.c.inc"
 #endif
 
 QCryptoCipher *qcrypto_cipher_new(QCryptoCipherAlgorithm alg,