diff --git a/.gitignore b/.gitignore
index d49049124..5555e1544 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,6 +20,7 @@
 *.elf
 *.mcp
 *.orig
+*.bct
 *.dcd
 *.dcd.S
 *.bbenv
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index d4306cbe7..08518704f 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -400,3 +400,9 @@ quiet_cmd_imx_image = IMX-IMG $@
 
 quiet_cmd_kwb_image = KWB     $@
       cmd_kwb_image = scripts/kwbimage -p $< $(OPTS_$(@F)) -o $@
+
+quiet_cmd_cboot_bct = BCT     $@
+      cmd_cboot_bct = $(objtree)/scripts/tegra/cbootimage -gbct -s $(soc) $< $@
+
+$(obj)/%.bct: $(obj)/%.bct.cfg
+	$(call cmd,cboot_bct)