diff --git a/c/src/lib/libcpu/powerpc/Makefile.in b/c/src/lib/libcpu/powerpc/Makefile.in
index 2dda77e7a4..9687252dbb 100644
--- a/c/src/lib/libcpu/powerpc/Makefile.in
+++ b/c/src/lib/libcpu/powerpc/Makefile.in
@@ -10,4 +10,4 @@ VPATH=@srcdir@
 include $(RTEMS_CUSTOM)
 include $(PROJECT_ROOT)/make/directory.cfg
 
-SUB_DIRS=ppc403
+SUB_DIRS=$(wildcard $(RTEMS_CPU_MODEL))