diff --git a/kadmin/Makefile.am b/kadmin/Makefile.am
index a6f3d8159..76d8d8e0c 100644
--- a/kadmin/Makefile.am
+++ b/kadmin/Makefile.am
@@ -2,7 +2,7 @@
 
 AUTOMAKE_OPTIONS = no-dependencies foreign
 
-INCLUDES = -I$(top_builddir)/include $(INCLUDE_readline)
+INCLUDES = $(WFLAGS) -I$(top_builddir)/include $(INCLUDE_readline)
 
 sbin_PROGRAMS = kadmin