diff --git a/HISTORY.md b/HISTORY.md
index f39ba57..edb1b23 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -2,6 +2,7 @@
 * version 4.8.7 (2017-01-29)
   * Allows to translate the "Play all" text in the DVD menu
   * Fixed mkisofs bug with some locales
+
 * version 4.8.6 (2016-12-14)
   * Now ensures that the average bitrate is never smaller than the minimum bitrate
   * Now the matroska and divx files have the right extension
diff --git a/src/devedeng/genisoimage.py b/src/devedeng/genisoimage.py
index a565097..9cb1c47 100644
--- a/src/devedeng/genisoimage.py
+++ b/src/devedeng/genisoimage.py
@@ -77,7 +77,9 @@ class genisoimage(devedeng.executor.executor):
             return
 
         l = data[0].split("%")
-        p = float(l[0])
+        l0a = l[0]
+        l0b = l0a.replace(",", ".")
+        p = float(l0b)
         self.progress_bar[1].set_fraction(p / 100.0)
         self.progress_bar[1].set_text("%.1f%%" % (p))