diff --git a/src/drivers/github.js b/src/drivers/github.js
index 53e66f6cf..ce064f763 100644
--- a/src/drivers/github.js
+++ b/src/drivers/github.js
@@ -286,7 +286,7 @@ class Github {
         '--work',
         resolve(workdir, '_work'),
         // adds `--ephemeral` to the array only if `single` is set
-        ...(single && ['--ephemeral'])
+        ...(single ? ['--ephemeral'] : [])
       );
 
       return spawn(resolve(workdir, 'run.sh'), {
diff --git a/src/terraform.js b/src/terraform.js
index ef3216705..3ab47c13c 100644
--- a/src/terraform.js
+++ b/src/terraform.js
@@ -64,7 +64,7 @@ const destroy = async (opts = {}) => {
     dir,
     'destroy',
     '-auto-approve',
-    ...(target && ['-target', target])
+    ...(target ? ['-target', target] : [])
   );
 };