Index: boot/arch/ppc32/Makefile.inc
===================================================================
--- boot/arch/ppc32/Makefile.inc	(revision 4872160f9c176d257f1757469d1adec8033d95f9)
+++ boot/arch/ppc32/Makefile.inc	(revision 99297424ce4eedf8e36173e2da9cb5d698b9a02b)
@@ -40,7 +40,9 @@
 EXTRA_CFLAGS = -mcpu=powerpc -msoft-float -m32
 
-RD_SRVS += \
-	$(USPACE_PATH)/srv/hid/adb_mouse/adb_ms \
+RD_SRVS_ESSENTIAL += \
 	$(USPACE_PATH)/srv/hw/bus/cuda_adb/cuda_adb
+
+RD_SRVS_NON_ESSENTIAL += \
+	$(USPACE_PATH)/srv/hid/adb_mouse/adb_ms
 
 SOURCES = \