diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build
index faca2bf..8120af9 100644
--- a/tools/build/Makefile.build
+++ b/tools/build/Makefile.build
@@ -57,6 +57,8 @@
 quiet_cmd_cc_s_c = AS       $@
       cmd_cc_s_c = $(CC) $(c_flags) -S -o $@ $<
 
+quiet_cmd_gen = GEN      $@
+
 # Link agregate command
 # If there's nothing to link, create empty $@ object.
 quiet_cmd_ld_multi = LD       $@