1 files changed, 2 insertions, 1 deletions
diff --git a/src/jsifier.js b/src/jsifier.js
index 726a5eda..f4819584 100644
--- a/src/jsifier.js
+++ b/src/jsifier.js
@@ -1844,7 +1844,7 @@ function JSify(data, functionsOnly) {
     // rest of the output that we started to print out earlier (see comment on the
     // "Final shape that will be created").
     if (PRECISE_I64_MATH && Types.preciseI64MathUsed) {
-      if (!INCLUDE_FULL_LIBRARY) {
+      if (!INCLUDE_FULL_LIBRARY && !SIDE_MODULE) {
         // first row are utilities called from generated code, second are needed from fastLong
         ['i64Add', 'i64Subtract', 'bitshift64Shl', 'bitshift64Lshr', 'bitshift64Ashr',
          'llvm_ctlz_i32', 'llvm_cttz_i32'].forEach(function(func) {
@@ -1866,6 +1866,7 @@ function JSify(data, functionsOnly) {
           }
         });
       }
+      // these may be duplicated in side modules and the main module without issue
       print(read('fastLong.js'));
       print('// EMSCRIPTEN_END_FUNCS\n');
       print(read('long.js'));