diff --git a/build/makepack-dolibarr.pl b/build/makepack-dolibarr.pl
index 96ae320e1b5..8f9951ef157 100755
--- a/build/makepack-dolibarr.pl
+++ b/build/makepack-dolibarr.pl
@@ -129,7 +129,7 @@ $BUILDROOT="$TEMP/buildroot";
 $result = open( IN, "<" . $SOURCE . "/htdocs/filefunc.inc.php" );
 if ( !$result ) { die "Error: Can't open descriptor file " . $SOURCE . "/htdocs/filefunc.inc.php\n"; }
 while (<IN>) {
-	if ( $_ =~ /define\('DOL_VERSION','([\d\.a-z\-]+)'\)/ ) { $PROJVERSION = $1; break; }
+	if ( $_ =~ /define\('DOL_VERSION',\s*'([\d\.a-z\-]+)'\)/ ) { $PROJVERSION = $1; break; }
 }
 close IN;
 ($MAJOR,$MINOR,$BUILD)=split(/\./,$PROJVERSION,3);