diff --git a/common-algo.c b/common-algo.c
index c2cef776d15e0776a50367f750b64f3a7db8a31b..10d60c9b519d4cfd62c883728da2eca79e00aa43 100644
--- a/common-algo.c
+++ b/common-algo.c
@@ -265,13 +265,13 @@ static const struct dropbear_kex kex_dh_group16_sha512 = {DROPBEAR_KEX_NORMAL_DH
  ecc_curve at runtime */
 #ifdef DROPBEAR_ECDH
 #ifdef DROPBEAR_ECC_256
-static struct dropbear_kex kex_ecdh_nistp256 = {DROPBEAR_KEX_ECDH, NULL, 0, &ecc_curve_nistp256, &sha256_desc };
+static const struct dropbear_kex kex_ecdh_nistp256 = {DROPBEAR_KEX_ECDH, NULL, 0, &ecc_curve_nistp256, &sha256_desc };
 #endif
 #ifdef DROPBEAR_ECC_384
-static struct dropbear_kex kex_ecdh_nistp384 = {DROPBEAR_KEX_ECDH, NULL, 0, &ecc_curve_nistp384, &sha384_desc };
+static const struct dropbear_kex kex_ecdh_nistp384 = {DROPBEAR_KEX_ECDH, NULL, 0, &ecc_curve_nistp384, &sha384_desc };
 #endif
 #ifdef DROPBEAR_ECC_521
-static struct dropbear_kex kex_ecdh_nistp521 = {DROPBEAR_KEX_ECDH, NULL, 0, &ecc_curve_nistp521, &sha512_desc };
+static const struct dropbear_kex kex_ecdh_nistp521 = {DROPBEAR_KEX_ECDH, NULL, 0, &ecc_curve_nistp521, &sha512_desc };
 #endif
 #endif /* DROPBEAR_ECDH */
 
diff --git a/signkey.c b/signkey.c
index 55f34e783226269f96b590adfe044b1152e61aa8..2b611063d3c20ba5eb83e7b10954b41bcad4771f 100644
--- a/signkey.c
+++ b/signkey.c
@@ -29,7 +29,7 @@
 #include "ssh.h"
 #include "ecdsa.h"
 
-static const char *signkey_names[DROPBEAR_SIGNKEY_NUM_NAMED] = {
+static const char * const signkey_names[DROPBEAR_SIGNKEY_NUM_NAMED] = {
 #ifdef DROPBEAR_RSA
 	"ssh-rsa",
 #endif