diff -Nur linux-3.12.6.orig/scripts/Makefile.modpost linux-3.12.6/scripts/Makefile.modpost
--- linux-3.12.6.orig/scripts/Makefile.modpost	2013-12-20 16:51:33.000000000 +0100
+++ linux-3.12.6/scripts/Makefile.modpost	2014-01-25 14:55:33.000000000 +0100
@@ -60,7 +60,7 @@
 modulesymfile := $(firstword $(KBUILD_EXTMOD))/Module.symvers
 
 # Step 1), find all modules listed in $(MODVERDIR)/
-MODLISTCMD := find $(MODVERDIR) -name '*.mod' | xargs -r grep -h '\.ko$$' | sort -u
+MODLISTCMD := find $(MODVERDIR) -name '*.mod' | xargs grep -h '\.ko$$' | sort -u
 __modules := $(shell $(MODLISTCMD))
 modules   := $(patsubst %.o,%.ko, $(wildcard $(__modules:.ko=.o)))