diff --git a/.gitmodules b/.gitmodules
index b74f11672c..16e1d989c4 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -61,6 +61,3 @@
 [submodule "robin-map"]
 	path = externals/robin-map
 	url = https://github.com/Tessil/robin-map.git
-[submodule "externals/robin-map"]
-	path = externals/robin-map
-	url = https://github.com/Tessil/robin-map.git