diff --git a/.drone.yml b/.drone.yml
index 38f0918..160807d 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -14,7 +14,7 @@ steps:
       GPG_PASSPHRASE:
         from_secret: GPG_PASSPHRASE
     commands:
-      - echo $GPG_PRIVATE_KEY >> gpg.key
+      - echo "$GPG_PRIVATE_KEY" >> gpg.key
       - gpg --pinentry-mode loopback --passphrase $GPG_PASSPHRASE --import gpg.key
       - mvn --settings $MAVEN_SETTINGS -U -P ossrh,release clean deploy