diff --git a/src/main/java/org/spdx/core/SpdxCoreConstants.java b/src/main/java/org/spdx/core/SpdxCoreConstants.java
index 1a33a12..be83e9b 100644
--- a/src/main/java/org/spdx/core/SpdxCoreConstants.java
+++ b/src/main/java/org/spdx/core/SpdxCoreConstants.java
@@ -50,7 +50,7 @@ public static SpdxMajorVersion latestVersion() {
 		/**
 		 * @return the string prefix used in all version strings
 		 */
-		String prefix() {
+		public String prefix() {
 			return prefix;
 		}
 	}