diff --git a/lib/apkstats/command/apk_analyzer.rb b/lib/apkstats/command/apk_analyzer.rb
index ad366c5..f025635 100644
--- a/lib/apkstats/command/apk_analyzer.rb
+++ b/lib/apkstats/command/apk_analyzer.rb
@@ -6,7 +6,7 @@ def compare_with(apk_filepath, other_apk_filepath)
       out, err = run_command('apk', 'compare', '--different-only', apk_filepath, other_apk_filepath)
 
       if out
-        return out.partition("\n").first, nil
+        return out.partition("\n").first.strip, nil
       else
         return nil, err
       end
diff --git a/lib/apkstats/gem_version.rb b/lib/apkstats/gem_version.rb
index a5ede70..1da3c00 100644
--- a/lib/apkstats/gem_version.rb
+++ b/lib/apkstats/gem_version.rb
@@ -1,3 +1,3 @@
 module Apkstats
-  VERSION = "0.0.1".freeze
+  VERSION = "0.0.2".freeze
 end
diff --git a/lib/apkstats/plugin.rb b/lib/apkstats/plugin.rb
index 9c49e61..bc02145 100644
--- a/lib/apkstats/plugin.rb
+++ b/lib/apkstats/plugin.rb
@@ -44,9 +44,11 @@ def compare_with(other_apk_filepath, opts={})
       out, err = command.compare_with(apk_filepath, other_apk_filepath)
 
       if opts[:do_report]
-        if out
+        if out&.empty?
+          message("Apk file size was not changed")
+        elsif out
           left, right, diff, = out.split("\s")
-          message("Apk file size was changed by #{diff} : from #{right} to #{left}")
+          message("Apk file size was changed by #{diff} : from #{left} to #{right}")
         else
           warn(err)
         end