diff --git a/Makefile.am b/Makefile.am
index 179ee47..7381e44 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -335,6 +335,7 @@ apertium_spa_cat_DATA=				\
 	$(BASENAME).$(PREFIX2).arx          \
 	$(PREFIX1C).t1x			\
 	$(PREFIX1V).t1x			\
+        $(PREFIX1G).t1x                 \
 	$(PREFIX1U).t1x			\
 	$(BASENAME).$(PREFIX2).t1x