diff --git a/modules/core/include/opencv2/core/hal/intrin_wasm.hpp b/modules/core/include/opencv2/core/hal/intrin_wasm.hpp
index f5e5f05beb..e5c89c94b6 100644
--- a/modules/core/include/opencv2/core/hal/intrin_wasm.hpp
+++ b/modules/core/include/opencv2/core/hal/intrin_wasm.hpp
@@ -8,9 +8,18 @@
 #include <limits>
 #include <cstring>
 #include <algorithm>
-#include <emscripten/version.h>
 #include "opencv2/core/saturate.hpp"
 
+
+// Emscripten v2.0.13 (latest officially supported, as of 07/30/2024):
+// __EMSCRIPTEN_major__, __EMSCRIPTEN_minor__ and __EMSCRIPTEN_tiny__ are defined via commandline in
+// https://github.com/emscripten-core/emscripten/blob/1690a5802cd1241adc9714fb7fa2f633d38860dc/tools/shared.py#L506-L515
+//
+// See https://github.com/opencv/opencv/pull/25909
+#ifndef __EMSCRIPTEN_major__
+#include <emscripten/version.h>
+#endif
+
 #define CV_SIMD128 1
 #define CV_SIMD128_64F 0 // Now all implementation of f64 use fallback, so disable it.
 #define CV_SIMD128_FP16 0
diff --git a/modules/js/perf/package.json b/modules/js/perf/package.json
index 04607ddffe..06094794cf 100644
--- a/modules/js/perf/package.json
+++ b/modules/js/perf/package.json
@@ -2,18 +2,18 @@
     "name": "opencv_js_perf",
     "description": "Perfermance tests for opencv js bindings",
     "version": "1.0.0",
-    "dependencies" : {
-      "benchmark" : "latest"
+    "dependencies": {
+        "benchmark": "latest"
     },
     "repository": {
-      "type": "git",
-      "url": "https://github.com/opencv/opencv.git"
+        "type": "git",
+        "url": "https://github.com/opencv/opencv.git"
     },
     "keywords": [],
     "author": "",
     "license": "Apache 2.0 License",
     "bugs": {
-      "url": "https://github.com/opencv/opencv/issues"
+        "url": "https://github.com/opencv/opencv/issues"
     },
     "homepage": "https://github.com/opencv/opencv"
-  }
\ No newline at end of file
+}