diff --git a/bin/autoscan.in b/bin/autoscan.in
index a67c48d..1f9809c 100644
--- a/bin/autoscan.in
+++ b/bin/autoscan.in
@@ -358,7 +358,7 @@ sub scan_sh_file ($)
     {
       # Strip out comments and variable references.
       s/#.*//;
-      s/\${[^\}]*}//g;
+      s/\$\{[^\}]*}//g;
       s/@[^@]*@//g;
 
       # Tokens in the code.