1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 412de905f0..1dbb7ac47a 100644
--- a/Makefile
+++ b/Makefile
@@ -548,7 +548,7 @@ ARITHVO=theories/Arith/Arith.vo         theories/Arith/Gt.vo          \
 	theories/Arith/EqNat.vo         theories/Arith/Peano_dec.vo   \
 	theories/Arith/Euclid.vo        theories/Arith/Plus.vo        \
 	theories/Arith/Wf_nat.vo  	theories/Arith/Max.vo	      \
-	theories/Arith/Bool_nat.vo
+	theories/Arith/Bool_nat.vo	theories/Arith/Factorial.vo   \
 #	theories/Arith/Div.vo 
 
 SORTINGVO=theories/Sorting/Heap.vo \