diff --git a/utilities/buildutils/revisioninfo/edu/cornell/mannlib/vitro/utilities/revisioninfo/RevisionInfoBuilder.java b/utilities/buildutils/revisioninfo/edu/cornell/mannlib/vitro/utilities/revisioninfo/RevisionInfoBuilder.java
index 59c4d3047..b4d1602c8 100644
--- a/utilities/buildutils/revisioninfo/edu/cornell/mannlib/vitro/utilities/revisioninfo/RevisionInfoBuilder.java
+++ b/utilities/buildutils/revisioninfo/edu/cornell/mannlib/vitro/utilities/revisioninfo/RevisionInfoBuilder.java
@@ -70,7 +70,15 @@ public class RevisionInfoBuilder {
 		}
 
 		String release = assembleReleaseNameFromSubversion();
+		if (release == null) {
+			return null;
+		}
+		
 		String revision = obtainRevisionLevelFromSubversion();
+		if (revision == null) {
+			return null;
+		}
+		
 		return buildLine(release, revision);
 	}