diff --git a/build/top.mk b/build/top.mk
index f1b1763de40621c9ac56acd1e4e6dff284da42c9..46d81b73229fd164993cf0a2dcc66fa3683ac811 100644
--- a/build/top.mk
+++ b/build/top.mk
@@ -39,7 +39,7 @@ AR = ar
 
 LINT = lint
 5LINT = 5lint
-MKDEP = mkdep
+MKDEP = $(top_srcdir)/build/mkdep
 
 # Misc UNIX commands used in makefiles
 SED = sed