diff --git a/Makefile b/Makefile
index deedaf79cdca2325936f63b511b3744163587bd6..673148e07603778eae148651d432cb6351cac96f 100644
--- a/Makefile
+++ b/Makefile
@@ -151,7 +151,7 @@ export srctree objtree VPATH TOPDIR
 SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
 				  -e s/arm.*/arm/ -e s/sa110/arm/ \
 				  -e s/s390x/s390/ -e s/parisc64/parisc/ \
-				  -e s/ppc64/powerpc/ )
+				  -e s/ppc.*/powerpc/ )
 
 # Cross compiling and selecting different set of gcc/bin-utils
 # ---------------------------------------------------------------------------