diff --git a/libsrc/runtime/Makefile b/libsrc/runtime/Makefile
index 2d554549c..e509c5471 100644
--- a/libsrc/runtime/Makefile
+++ b/libsrc/runtime/Makefile
@@ -169,6 +169,7 @@ OBJS = 	add.o		\
 	staxspidx.o	\
 	staxspp.o	\
        	steaxsp.o	\
+	steaxspi.o	\
 	steaxspp.o	\
 	stkchk.o	\
        	sub.o		\