diff --git a/scripts/nmk/scripts/include.mk b/scripts/nmk/scripts/include.mk
index c7dd7ccfb..7fe095312 100644
--- a/scripts/nmk/scripts/include.mk
+++ b/scripts/nmk/scripts/include.mk
@@ -14,7 +14,7 @@ SUBARCH := $(shell uname -m | sed       \
                 -e s/sa110/arm/         \
                 -e s/s390x/s390/        \
                 -e s/parisc64/parisc/   \
-                -e s/ppc.*/powerpc/     \
+                -e s/ppc64.*/ppc64/     \
                 -e s/mips.*/mips/       \
                 -e s/sh[234].*/sh/      \
                 -e s/aarch64.*/arm64/)