diff --git a/hecl/.gitmodules b/hecl/.gitmodules
index 6fc402c1b..c836ed99c 100644
--- a/hecl/.gitmodules
+++ b/hecl/.gitmodules
@@ -6,7 +6,7 @@
 	url = https://github.com/libAthena/athena.git
 [submodule "extern/boo"]
 	path = extern/boo
-	url = https://github.com/AxioDL/boo.git
+	url = ../boo.git
 [submodule "extern/libjpeg-turbo"]
 	path = extern/libjpeg-turbo
 	url = https://github.com/jackoalan/libjpeg-turbo.git
diff --git a/hecl/extern/boo b/hecl/extern/boo
index 579ddc822..3c4f304d5 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit 579ddc822c769998bdefa527476e13f834beee91
+Subproject commit 3c4f304d5a375df8c455ae3200eb12ce1d47f099