diff --git a/installer/mkvtoolnix-unicode.nsi b/installer/mkvtoolnix-unicode.nsi
index 9fd5b4976..e10fe734d 100644
--- a/installer/mkvtoolnix-unicode.nsi
+++ b/installer/mkvtoolnix-unicode.nsi
@@ -1,6 +1,6 @@
 !define PRODUCT_NAME "MKVToolNix"
 !define PRODUCT_VERSION "5.2.1"
-!define PRODUCT_VERSION_BUILD " [20111203-387]"
+!define PRODUCT_VERSION_BUILD ""  # Intentionally left empty for releases
 !define PRODUCT_PUBLISHER "Moritz Bunkus"
 !define PRODUCT_WEB_SITE "http://www.bunkus.org/videotools/mkvtoolnix/"
 !define PRODUCT_DIR_REGKEY "Software\Microsoft\Windows\CurrentVersion\App Paths\mmg.exe"