diff --git a/.gitmodules b/.gitmodules
index 069d38a1ee4..28e43aadc49 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,15 +1,15 @@
 [submodule "installer"]
 	path = installer
-	url = git://github.com:geonetwork/core-installer.git
+	url = git://github.com/geonetwork/core-installer.git
 [submodule "gast"]
 	path = gast
-	url = git://github.com:geonetwork/core-gast.git
+	url = git://github.com/geonetwork/core-gast.git
 [submodule "maven_repo"]
 	path = maven_repo
-	url = git://github.com:geonetwork/core-maven-repo.git
+	url = git://github.com/geonetwork/core-maven-repo.git
 [submodule "release"]
 	path = release
-	url = git://github.com:geonetwork/core-release.git
+	url = git://github.com/geonetwork/core-release.git
 [submodule "docs"]
 	path = docs
-	url = git://github.com:geonetwork/core-doc-sources.git
+	url = git://github.com/geonetwork/core-doc-sources.git