diff --git a/package/yasm/yasm.mk b/package/yasm/yasm.mk
index bf8a481561..6729b6a74d 100644
--- a/package/yasm/yasm.mk
+++ b/package/yasm/yasm.mk
@@ -7,10 +7,10 @@
 YASM_VERSION = 1.3.0
 YASM_SITE = http://www.tortall.net/projects/yasm/releases
 
+# This sed prevents it compiling 2 programs (vsyasm and ytasm)
+# that are only of use on Microsoft Windows.
 define YASM_PRE_CONFIGURE_FIXUP
-# This sed prevents it compiling 2 programs (vsyasm and ytasm) 
-# that are only of use on Microsoft Windows. 
-	sed -i 's#) ytasm.*#)#' $(@D)/Makefile.in
+	$(SED) 's#) ytasm.*#)#' $(@D)/Makefile.in
 endef
 
 YASM_PRE_CONFIGURE_HOOKS += YASM_PRE_CONFIGURE_FIXUP