diff --git a/configure.ac b/configure.ac
index cb3c474e5..b1c71f964 100644
--- a/configure.ac
+++ b/configure.ac
@@ -176,7 +176,7 @@ dnl
 
 dnl bzip2
 AC_ARG_ENABLE(bzip2,
-	AS_HELP_STRING([--enable-bz2],
+	AS_HELP_STRING([--enable-bzip2],
 		[enable bzip2 archive support (default: disabled)]),
 	enable_bz2=$enableval,
 	enable_bz2=no)