diff --git a/modules/boost/boost.cmake b/modules/boost/boost.cmake
index 6b82fa1..48e049e 100644
--- a/modules/boost/boost.cmake
+++ b/modules/boost/boost.cmake
@@ -12,7 +12,7 @@
 #   - minor: 59
 #   - patch: 0
 #   - components: "chrono;timer;system"
-#   - source: "https://github.com/coderefinery/autocmake/raw/master/modules/boost/boost.cmake"
+#   - source: "https://github.com/coderefinery/autocmake/raw/yaml/modules/boost/boost.cmake"
 #
 # Cross-dependencies between required components are not checked for.
 # For example, Boost.Timer depends on Boost.Chrono and Boost.System thus you
@@ -48,18 +48,19 @@
 #
 # autocmake.yml configuration::
 #
+#   url_root: https://github.com/coderefinery/autocmake/raw/yaml/
 #   major: 1
 #   minor: 48
 #   patch: 0
 #   components: ""
 #   fetch:
-#     - "https://github.com/coderefinery/autocmake/raw/master/modules/boost/boost_unpack.cmake"
-#     - "https://github.com/coderefinery/autocmake/raw/master/modules/boost/boost_userconfig.cmake"
-#     - "https://github.com/coderefinery/autocmake/raw/master/modules/boost/boost_configure.cmake"
-#     - "https://github.com/coderefinery/autocmake/raw/master/modules/boost/boost_build.cmake"
-#     - "https://github.com/coderefinery/autocmake/raw/master/modules/boost/boost_install.cmake"
-#     - "https://github.com/coderefinery/autocmake/raw/master/modules/boost/boost_headers.cmake"
-#     - "https://github.com/coderefinery/autocmake/raw/master/modules/boost/boost_cleanup.cmake"
+#     - "%(url_root)modules/boost/boost_unpack.cmake"
+#     - "%(url_root)modules/boost/boost_userconfig.cmake"
+#     - "%(url_root)modules/boost/boost_configure.cmake"
+#     - "%(url_root)modules/boost/boost_build.cmake"
+#     - "%(url_root)modules/boost/boost_install.cmake"
+#     - "%(url_root)modules/boost/boost_headers.cmake"
+#     - "%(url_root)modules/boost/boost_cleanup.cmake"
 #     - "http://sourceforge.net/projects/boost/files/boost/%(major)s.%(minor)s.%(patch)s/boost_%(major)s_%(minor)s_%(patch)s.zip"
 #   docopt:
 #     - "--boost-headers=<BOOST_INCLUDEDIR> Include directories for Boost [default: '']."
diff --git a/modules/git_info/git_info.cmake b/modules/git_info/git_info.cmake
index c5185d3..9ee81f4 100644
--- a/modules/git_info/git_info.cmake
+++ b/modules/git_info/git_info.cmake
@@ -7,9 +7,10 @@
 #
 # autocmake.yml configuration::
 #
+#   url_root: https://github.com/coderefinery/autocmake/raw/yaml/
 #   fetch:
-#     - "https://github.com/coderefinery/autocmake/raw/master/modules/git_info/git_info_sub.cmake"
-#     - "https://github.com/coderefinery/autocmake/raw/master/modules/git_info/git_info.h.in"
+#     - "%(url_root)modules/git_info/git_info_sub.cmake"
+#     - "%(url_root)modules/git_info/git_info.h.in"
 
 # CMAKE_CURRENT_LIST_DIR is undefined in CMake 2.8.2
 # see https://public.kitware.com/Bug/print_bug_page.php?bug_id=11675
diff --git a/modules/math/accelerate.cmake b/modules/math/accelerate.cmake
index 7fb9511..f03b160 100644
--- a/modules/math/accelerate.cmake
+++ b/modules/math/accelerate.cmake
@@ -10,11 +10,12 @@
 #
 # autocmake.yml configuration::
 #
+#   url_root: https://github.com/coderefinery/autocmake/raw/yaml/
 #   docopt: "--accelerate Find and link to ACCELERATE [default: False]."
 #   define: "'-DENABLE_ACCELERATE={0}'.format(arguments['--accelerate'])"
 #   fetch:
-#     - "https://github.com/coderefinery/autocmake/raw/master/modules/find/find_libraries.cmake"
-#     - "https://github.com/coderefinery/autocmake/raw/master/modules/find/find_include_files.cmake"
+#     - "%(url_root)modules/find/find_libraries.cmake"
+#     - "%(url_root)modules/find/find_include_files.cmake"
 
 option(ENABLE_ACCELERATE "Find and link to ACCELERATE" OFF)
 
diff --git a/modules/math/cblas.cmake b/modules/math/cblas.cmake
index a5024cb..305c3cc 100644
--- a/modules/math/cblas.cmake
+++ b/modules/math/cblas.cmake
@@ -10,11 +10,12 @@
 #
 # autocmake.yml configuration::
 #
+#   url_root: https://github.com/coderefinery/autocmake/raw/yaml/
 #   docopt: "--cblas Find and link to CBLAS [default: False]."
 #   define: "'-DENABLE_CBLAS={0}'.format(arguments['--cblas'])"
 #   fetch:
-#     - "https://github.com/coderefinery/autocmake/raw/master/modules/find/find_libraries.cmake"
-#     - "https://github.com/coderefinery/autocmake/raw/master/modules/find/find_include_files.cmake"
+#     - "%(url_root)modules/find/find_libraries.cmake"
+#     - "%(url_root)modules/find/find_include_files.cmake"
 
 option(ENABLE_CBLAS "Find and link to CBLAS" OFF)
 
diff --git a/modules/math/lapacke.cmake b/modules/math/lapacke.cmake
index 2258a6e..e561ba6 100644
--- a/modules/math/lapacke.cmake
+++ b/modules/math/lapacke.cmake
@@ -10,11 +10,12 @@
 #
 # autocmake.yml configuration::
 #
+#   url_root: https://github.com/coderefinery/autocmake/raw/yaml/
 #   docopt: "--lapacke Find and link to LAPACKE [default: False]."
 #   define: "'-DENABLE_LAPACKE={0}'.format(arguments['--lapacke'])"
 #   fetch:
-#     - "https://github.com/coderefinery/autocmake/raw/master/modules/find/find_libraries.cmake"
-#     - "https://github.com/coderefinery/autocmake/raw/master/modules/find/find_include_files.cmake"
+#     - "%(url_root)modules/find/find_libraries.cmake"
+#     - "%(url_root)modules/find/find_include_files.cmake"
 
 option(ENABLE_LAPACKE "Find and link to LAPACKE" OFF)