diff --git a/.drone.yml b/.drone.yml
index f4c6640..a49573d 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -27,7 +27,7 @@ steps:
     # Build file system image
     - platformio run --target buildfs --environment d1_mini
     # Upload image with espota-gateway
-    - curl -s --request POST --url http://espota.ctdo.de:8180/ --header 'Content-Type: multipart/form-data' --form ip=$lastknownip --form firmware=@.pio/build/d1_mini/firmware.bin -N
+    - curl -s --request POST --url http://espota.ctdo.de:8180/ --header "Content-Type:: multipart/form-data" --form ip=$lastknownip --form firmware=@.pio/build/d1_mini/firmware.bin -N
     # TODO: Upload file system image with espota-gateway, if the device is available again (or leave it to espota-gateway to retry often enough)
     #- platformio run --target upload --environment d1_mini
     # (Build if necessary and) Upload Filesystem Image (here: OTA)