diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 1cee2f9fdf06..095e04db1c0e 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -273,7 +273,8 @@ endif
 initrd-  := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-))
 initrd-y := $(patsubst zImage%, zImage.initrd%, \
 		$(patsubst dtbImage%, dtbImage.initrd%, \
-		$(patsubst treeImage%, treeImage.initrd%, $(image-y))))
+		$(patsubst simpleImage%, simpleImage.initrd%, \
+		$(patsubst treeImage%, treeImage.initrd%, $(image-y)))))
 initrd-y := $(filter-out $(image-y), $(initrd-y))
 targets	+= $(image-y) $(initrd-y)