diff --git a/build.gradle b/build.gradle
index e668238..d5ee365 100644
--- a/build.gradle
+++ b/build.gradle
@@ -327,19 +327,19 @@ publishing {
 	repositories {
 		maven {
 			if(isMavenCentral) {
-				def auth = System.getenv("Maven_Central_Auth").split(';');
+				def auth = System.getenv("Maven_Central_Auth")?.split(';');
 				url version.endsWith('SNAPSHOT') ? "https://s01.oss.sonatype.org/content/repositories/snapshots/" : "https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/"
 				credentials {
-					username auth[0]
-					password auth[1]
+					username auth?[0]
+					password auth?[1]
 				}
 			}
 			else {
-				def auth = System.getenv("Speiger_Maven_Auth").split(';');
+				def auth = System.getenv("Speiger_Maven_Auth")?.split(';');
 				url version.endsWith('SNAPSHOT') ? "https://maven.speiger.com/repository/debug" : "https://maven.speiger.com/repository/main"
 				credentials(PasswordCredentials) {
-					username auth[0]
-					password auth[1]
+					username auth?[0]
+					password auth?[1]
 				}
 			}
 		}