diff --git a/mpn/x86_64/mullo_basecase.asm b/mpn/x86_64/mullow_basecase.asm
similarity index 99%
rename from mpn/x86_64/mullo_basecase.asm
rename to mpn/x86_64/mullow_basecase.asm
index 87da44f8..6b4b0dad 100644
--- a/mpn/x86_64/mullo_basecase.asm
+++ b/mpn/x86_64/mullow_basecase.asm
@@ -1,4 +1,4 @@
-dnl  AMD64 mpn_mullo_basecase.
+dnl  AMD64 mpn_mullow_basecase.
 
 dnl  Contributed to the GNU project by Torbjorn Granlund.
 
@@ -56,7 +56,7 @@ define(`w3',	`%r10')
 ASM_START()
 	TEXT
 	ALIGN(16)
-PROLOGUE(mpn_mullo_basecase)
+PROLOGUE(mpn_mullow_basecase)
 	
 	cmp	$4, n
 	jge	L(gen)