diff --git a/configure.ac b/configure.ac
index e3f701bc..822a23d8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -185,7 +185,7 @@ AC_ARG_ENABLE([skill],
   AS_HELP_STRING([--enable-skill], [build skill and snice]),
   [], enable_skill=no
 )
-AM_CONDITIONAL(BUILD_SKILL, test "x$build_skill" = xyes)
+AM_CONDITIONAL(BUILD_SKILL, test "x$enable_skill" = xyes)
 
 AC_ARG_ENABLE([examples],
   AS_HELP_STRING([--enable-examples], [add example files to installation]),