diff --git a/repos/ports/ports/virtualbox.hash b/repos/ports/ports/virtualbox.hash
index e2ea8adcbf..f22e8de12a 100644
--- a/repos/ports/ports/virtualbox.hash
+++ b/repos/ports/ports/virtualbox.hash
@@ -1 +1 @@
-b4d19845319becd64b6daeb3da2c0b88a07c25a8
+7d0320bac1d65391cd0f548126df7399b8fb7f18
diff --git a/repos/ports/ports/virtualbox.port b/repos/ports/ports/virtualbox.port
index 307ea91fff..f3b08c119a 100644
--- a/repos/ports/ports/virtualbox.port
+++ b/repos/ports/ports/virtualbox.port
@@ -18,6 +18,8 @@ PATCHES := $(addprefix $(PATCHES_DIR)/, $(shell cat $(REP_DIR)/$(PATCHES_DIR)/se
 PATCH_OPT := -p1
 
 $(call check_tool,xsltproc)
+$(call check_tool,yasm)
+$(call check_tool,iasl)
 
 VBOX_MAIN_GLUE := AutoLock EventQueue string xpcom/helpers