diff --git a/sim/mips/Makefile.in b/sim/mips/Makefile.in
index 184c0f5774..abfb81ad96 100644
--- a/sim/mips/Makefile.in
+++ b/sim/mips/Makefile.in
@@ -20,6 +20,7 @@ SIM_SKY_OBJS = \
 	sky-vu.o \
 	sky-vu0.o \
 	sky-vu1.o \
+	sky-gs.o \
 	sky-gdb.o
 # end-sanitize-sky