diff --git a/searx/static/themes/oscar/js/searxng.min.js b/searx/static/themes/oscar/js/searxng.min.js
index 9da3a8b7..c835d812 100644
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diff --git a/searx/static/themes/oscar/js/searxng.min.js.map b/searx/static/themes/oscar/js/searxng.min.js.map
index 33b340aa..0b631747 100644
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diff --git a/searx/static/themes/simple/gruntfile.js b/searx/static/themes/simple/gruntfile.js
index 57682430..ca59cb56 100644
--- a/searx/static/themes/simple/gruntfile.js
+++ b/searx/static/themes/simple/gruntfile.js
@@ -88,7 +88,9 @@ module.exports = function(grunt) {
         warnings: true,
         compress: false,
         mangle: true,
-        sourceMap: true
+        sourceMap: {
+          includeSources: true
+        }
       },
       dist: {
         files: {
diff --git a/searx/static/themes/simple/js/searxng.head.min.js.map b/searx/static/themes/simple/js/searxng.head.min.js.map
index 92faff1d..4869cc1d 100644
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diff --git a/searx/static/themes/simple/js/searxng.min.js.map b/searx/static/themes/simple/js/searxng.min.js.map
index ee2728ab..a1173720 100644
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