diff --git a/Makefile.am b/Makefile.am
index 18bb43d..40c3517 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -42,7 +42,7 @@ guix-commit.txt: Makefile
 		s#VM_IPV4_ADDRESS#$(VM_IPV4_ADDRESS)#g ; \
 		s#VM_IPV6_ADDRESS#$(VM_IPV6_ADDRESS)#g ; \
 		s#VM_IPV4_GATEWAY#$(VM_IPV4_GATEWAY)#g ; \
-		s#VM_IPV6_GATEWAY#$(VM_IPV4_GATEWAY)#g ; \
+		s#VM_IPV6_GATEWAY#$(VM_IPV6_GATEWAY)#g ; \
 		s#VM_IPV4_DNS#$(VM_IPV4_DNS)#g ; \
 		s#VM_IPV6_DNS#$(VM_IPV6_DNS)#g ; \
 		s#VM_SSH_PUB_KEY#$(VM_SSH_PUB_KEY)#g ; \