diff --git a/tinycrypt/ecc.c b/tinycrypt/ecc.c
index c4a677070..090f691e9 100644
--- a/tinycrypt/ecc.c
+++ b/tinycrypt/ecc.c
@@ -937,6 +937,7 @@ int uECC_compute_public_key(const uint8_t *private_key, uint8_t *public_key,
 	curve->num_bytes, curve->num_bytes, _public + curve->num_words);
 	return 1;
 }
-
+#else
+typedef int mbedtls_dummy_uecc_def;
 #endif /* MBEDTLS_USE_UECC */
 
diff --git a/tinycrypt/ecc_dh.c b/tinycrypt/ecc_dh.c
index 7277879be..5d0a52f77 100644
--- a/tinycrypt/ecc_dh.c
+++ b/tinycrypt/ecc_dh.c
@@ -196,4 +196,6 @@ clear_and_out:
 
 	return r;
 }
+#else
+typedef int mbedtls_dummy_uecc_def;
 #endif /* MBEDTLS_USE_UECC */
diff --git a/tinycrypt/ecc_dsa.c b/tinycrypt/ecc_dsa.c
index d3e72a57d..ff8a78a3a 100644
--- a/tinycrypt/ecc_dsa.c
+++ b/tinycrypt/ecc_dsa.c
@@ -292,5 +292,6 @@ int uECC_verify(const uint8_t *public_key, const uint8_t *message_hash,
 	/* Accept only if v == r. */
 	return (int)(uECC_vli_equal(rx, r, num_words) == 0);
 }
-
+#else
+typedef int mbedtls_dummy_uecc_def;
 #endif /* MBEDTLS_USE_UECC */