diff --git a/.drone.yml b/.drone.yml
index adcf1cc0da..c048e2fc6f 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -299,7 +299,7 @@ pipeline:
     when:
       matrix:
         DB: postgres
-        PHP: 7.0
+        PHP: "7.0"
   mysqlmb4-php5.6:
     image: nextcloudci/php5.6:php5.6-8
     commands: