diff --git a/src/modules/Gmp/Makefile.in b/src/modules/Gmp/Makefile.in
index e38a0d2e277201fa83ab26acd4a4c824b882ab7e..d56eb31b4a4b13c9a71bc8f04e9f3e13b7c74a69 100644
--- a/src/modules/Gmp/Makefile.in
+++ b/src/modules/Gmp/Makefile.in
@@ -7,6 +7,8 @@ PRIME_LIMIT=1024
 
 @dynamic_module_makefile@
 
+next_prime.o: prime_table.out
+
 prime_table.out: prime_table
 	./prime_table $(PRIME_LIMIT) >prime_table.out