diff --git a/sphinx_rtd_theme/layout.html b/sphinx_rtd_theme/layout.html
index e8d9b5f90..db5828fd3 100644
--- a/sphinx_rtd_theme/layout.html
+++ b/sphinx_rtd_theme/layout.html
@@ -170,7 +170,8 @@
             VERSION:'{{ release|e }}',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'{{ '' if no_search_suffix else file_suffix }}',
-            HAS_SOURCE:  {{ has_source|lower }}
+            HAS_SOURCE:  {{ has_source|lower }},
+            SOURCELINK_SUFFIX: '{{ sourcelink_suffix }}'
         };
     </script>
     {%- for scriptfile in script_files %}
diff --git a/sphinx_rtd_theme/layout_old.html b/sphinx_rtd_theme/layout_old.html
index deb8df2a1..f0dc2af65 100644
--- a/sphinx_rtd_theme/layout_old.html
+++ b/sphinx_rtd_theme/layout_old.html
@@ -91,7 +91,8 @@ <h3>{{ _('Navigation') }}</h3>
         VERSION:     '{{ release|e }}',
         COLLAPSE_INDEX: false,
         FILE_SUFFIX: '{{ '' if no_search_suffix else file_suffix }}',
-        HAS_SOURCE:  {{ has_source|lower }}
+        HAS_SOURCE:  {{ has_source|lower }},
+        SOURCELINK_SUFFIX: '{{ sourcelink_suffix }}'
       };
     </script>
     {%- for scriptfile in script_files %}