diff --git a/indexer-cli/src/main/java/org/apache/maven/index/cli/NexusIndexerCli.java b/indexer-cli/src/main/java/org/apache/maven/index/cli/NexusIndexerCli.java
index d64f039..3b2319f 100644
--- a/indexer-cli/src/main/java/org/apache/maven/index/cli/NexusIndexerCli.java
+++ b/indexer-cli/src/main/java/org/apache/maven/index/cli/NexusIndexerCli.java
@@ -484,7 +484,7 @@
         {
             if ( !quiet )
             {
-                System.err.printf( "Cannot zip index; \n", e.getMessage() );
+                System.err.printf( "Cannot zip index: %s\n", e.getMessage() );
 
                 if ( debug )
                 {