diff --git a/.travis.yml b/.travis.yml
index 614ca20..611df54 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -115,7 +115,7 @@ matrix:
 
 # MacOS build
 
-  - env: SET=test01
+  - env: SET=test01 SNCSEQ=master
     os: osx
     compiler: clang
     addons: { homebrew: { packages: ["re2c"], update: true } }
diff --git a/test01.set b/test01.set
index 298b92a..d6a9698 100644
--- a/test01.set
+++ b/test01.set
@@ -1,4 +1,4 @@
 MODULES="sncseq"
 
 BASE=${BASE:-R3.15.6}
-SNCSEQ=R2-2-7
+SNCSEQ=${SNCSEQ:-R2-2-7}