diff --git a/makeself-header.sh b/makeself-header.sh
index 135e7525..dd47d237 100755
--- a/makeself-header.sh
+++ b/makeself-header.sh
@@ -2,6 +2,8 @@ cat << EOF  > "$archname"
 #!/bin/sh
 # This script was generated using Makeself $MS_VERSION
 
+umask 077
+
 CRCsum="$CRCsum"
 MD5="$MD5sum"
 TMPROOT=\${TMPDIR:=/tmp}