Fix publish credentials (#1896)

diff --git a/deploy_snapshot.sh b/deploy_snapshot.sh
index 7cfaac7..ee4e33c 100755
--- a/deploy_snapshot.sh
+++ b/deploy_snapshot.sh
@@ -7,4 +7,4 @@
 
 set -e
 
-./gradlew publish -DmavenCentralUsername="${SONATYPE_USERNAME}" -DmavenCentralPassword="${SONATYPE_PASSWORD}"
+./gradlew publish -PmavenCentralUsername="${SONATYPE_USERNAME}" -PmavenCentralPassword="${SONATYPE_PASSWORD}"