diff --git a/osrepodbmgr.Core/ChangeLog b/osrepodbmgr.Core/ChangeLog
index 91c49cf..98a2ce1 100644
--- a/osrepodbmgr.Core/ChangeLog
+++ b/osrepodbmgr.Core/ChangeLog
@@ -1,3 +1,8 @@
+2017-05-11  Natalia Portillo  <claunia@claunia.com>
+
+	* Workers.cs:
+	  Correct progress bar on compression.
+
 2017-05-10  Natalia Portillo  <claunia@claunia.com>
 
 	* Context.cs:
diff --git a/osrepodbmgr.Core/Workers.cs b/osrepodbmgr.Core/Workers.cs
index 14b72e0..28a9a3b 100644
--- a/osrepodbmgr.Core/Workers.cs
+++ b/osrepodbmgr.Core/Workers.cs
@@ -929,7 +929,7 @@ namespace osrepodbmgr.Core
                 zipCounter++;
             }
 
-            if(UpdateProgress != null && e.CurrentEntry != null)
+            if(UpdateProgress != null && e.CurrentEntry != null && e.EntriesTotal > 0)
                 UpdateProgress("Compressing...", e.CurrentEntry.FileName, zipCounter, e.EntriesTotal);
             if(UpdateProgress2 != null)
                 UpdateProgress2(string.Format("{0:P}", e.BytesTransferred / (double)e.TotalBytesToTransfer),