diff --git a/cf/capabilities.m4 b/cf/capabilities.m4
index 6aa3c3db2..5375b0828 100644
--- a/cf/capabilities.m4
+++ b/cf/capabilities.m4
@@ -8,7 +8,7 @@ dnl
 
 AC_DEFUN(KRB_CAPABILITIES,[
 
-AC_CHECK_HEADERS(sys/capability.h)
+AC_CHECK_HEADERS(capability.h sys/capability.h)
 
 AC_CHECK_FUNCS(sgi_getcapabilitybyname cap_set_proc)
 ])