diff --git a/programs/fs/fspeed/fspeed.asm b/programs/fs/fspeed/fspeed.asm
index fb14960853..76defa00c2 100644
--- a/programs/fs/fspeed/fspeed.asm
+++ b/programs/fs/fspeed/fspeed.asm
@@ -229,7 +229,7 @@ read_chunk:
 .end:	
 	mov	eax,[ebp+8]
 	xor	edx,edx
-	imul	eax,ecx
+	mul	ecx
 	shr	eax,10+4 ;div 1024 ; div 16
 	shl	edx,18
 	add	eax,edx