--- a/nsis-mode.el	Tue Sep 27 10:34:48 2011 +0300
+++ b/nsis-mode.el	Tue Sep 27 10:37:34 2011 +0300
@@ -78,7 +78,7 @@
 (setq nsis-imenu-generic-expression
       '(
         ("Defines"  "^!define[[:blank:]]+\\([[:word:]]+\\)" 1)
-        ("Sections"  "^Section[[:blank:]]+\"?\\(-?[[:word:]]+\\)\"?" 1)
+        ("Sections"  "^Section[[:blank:]]+\"?\\(-?[[:word:] ]+\\)\"?" 1)
         ("Functions"  "^Function[[:blank:]]+\\([[:word:]]+\\)" 1)
         ("Macros"  "^!macro[[:blank:]]+\\([[:word:]]+\\)" 1)
         ))