diff --git a/src/jsifier.js b/src/jsifier.js
index f58b596be346d..03beb49890d9e 100644
--- a/src/jsifier.js
+++ b/src/jsifier.js
@@ -26,7 +26,11 @@ function JSify(data, functionsOnly) {
   if (mainPass) {
     var shellFile = SHELL_FILE ? SHELL_FILE : (BUILD_AS_SHARED_LIB || SIDE_MODULE ? 'shell_sharedlib.js' : 'shell.js');
 
-    var thirdPartyFiles = ['../third_party/sodiumutil/dist/sodiumutil.js'];
+    var thirdPartyFiles = [];
+    
+    if (INCLUDE_THIRD_PARTY_SODIUMUTIL) {
+      thirdPartyFiles.push('../third_party/sodiumutil/dist/sodiumutil.js');
+    }
 
     // We will start to print out the data, but must do so carefully - we are
     // dealing with potentially *huge* strings. Convenient replacements and
diff --git a/tools/shared.py b/tools/shared.py
index dc0f6fc319ec8..54fc76749df07 100644
--- a/tools/shared.py
+++ b/tools/shared.py
@@ -2281,6 +2281,7 @@ def to_nice_ident(ident): # limited version of the JS function toNiceIdent
   @staticmethod
   def get_subresource_location(path, data_uri=Settings.SINGLE_FILE):
     if data_uri:
+      Settings.INCLUDE_THIRD_PARTY_SODIUMUTIL = 1
       f = open(path, 'rb')
       data = base64.b64encode(f.read())
       f.close()