diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000000..822dd87a63
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,9 @@
+language: c
+
+
+install:
+  - sudo apt-get install check
+
+script:
+  - make tests
+  - ./tests
diff --git a/README.md b/README.md
index 435f9f1ad6..90dbf421a5 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,8 @@
 trezor-crypto
 =============
 
+[![Build Status](https://travis-ci.org/trezor/trezor-crypto.svg?branch=master)](https://travis-ci.org/trezor/trezor-crypto)
+
 Heavily optimized cryptography algorithms for embedded devices.
 
 These include:
diff --git a/tests.c b/tests.c
index 9b40d83c52..511993df16 100644
--- a/tests.c
+++ b/tests.c
@@ -152,7 +152,7 @@ START_TEST(test_base58)
 
 		memcpy(rawn, fromhex(*raw), len);
 		r = base58_encode_check(rawn, len, strn, sizeof(strn));
-		ck_assert_int_eq(r, strlen(*str) + 1);
+		ck_assert_int_eq((size_t)r, strlen(*str) + 1);
 		ck_assert_str_eq(strn, *str);
 
 		r = base58_decode_check(strn, rawn, len);