--- configure.in
+++ configure.in
@@ -573,7 +573,7 @@
 )
 #  LDFLAGS=$save_LDFLAGS
   AC_DEFINE(WITH_CURL,1,[use curl])
-	compoptionstring="${compoptionstring}WITH_CURL\\n"],
+  compoptionstring="${compoptionstring}WITH_CURL\\n"
 fi
 
 AC_ARG_WITH([gnu-regexp],