diff --git a/.travis.yml b/.travis.yml
index be6acf7..629bc21 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,8 @@
 language: erlang
 script: "rebar compile eunit"
 otp-release:
+    - R15B01
+    - R15B
     - R14B04
     - R14B03
     - R14B01
diff --git a/rebar.config b/rebar.config
index b082a72..7d2070a 100644
--- a/rebar.config
+++ b/rebar.config
@@ -1,3 +1,5 @@
 {require_otp_vsn, "R14|R15|R16"}.
-{port_env, [{"CFLAGS", "$CFLAGS -DSQLITE_THREADSAFE=1 -DSQLITE_USE_URI -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS"}]}.
-{port_specs, [{"priv/esqlite3_nif.so", ["c_src/*.c"]}]}.
+{port_env, [
+  {"CFLAGS", "$CFLAGS -DSQLITE_THREADSAFE=1 -DSQLITE_USE_URI -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS"}]}.
+{port_specs, [
+  {"priv/esqlite3_nif.so", ["c_src/*.c"]}]}.