diff --git a/fetch.js b/fetch.js
index e562cdea..ef116f51 100644
--- a/fetch.js
+++ b/fetch.js
@@ -11,6 +11,10 @@ try {
     process.chdir(prefix);
   }
 
+  const branch = process.env.GITHUB_REF_NAME;
+  restoreKeys.unshift(keyString);
+  keyString = keyString+'-'+branch;
+
   const toolchain = core.getInput('toolchain');
   var skiptoolchain = core.getInput('skip');
   if ( toolchain == 'true' ){
diff --git a/save.js b/save.js
index 4d96410f..6dbb3fa2 100644
--- a/save.js
+++ b/save.js
@@ -10,6 +10,9 @@ try {
     process.chdir(prefix);
   }
 
+  const branch = process.env.GITHUB_REF_NAME;
+  keyString = keyString+'-'+branch;
+
   const toolchain = core.getInput('toolchain');
   if ( toolchain=='true' ){
     stdout=execSync('git log --pretty=tformat:"%h" -n1 tools toolchain').toString().trim();