diff --git a/lib/ApplicationFeatures/LanguageFeature.cpp b/lib/ApplicationFeatures/LanguageFeature.cpp
index 7bd58f4901..b2bf0e9fa7 100644
--- a/lib/ApplicationFeatures/LanguageFeature.cpp
+++ b/lib/ApplicationFeatures/LanguageFeature.cpp
@@ -100,7 +100,11 @@ void* LanguageFeature::prepareIcu(std::string const& binaryPath, std::string con
       std::string icu_path = path.substr(0, path.length() - fn.length());
       FileUtils::makePathAbsolute(icu_path);
       FileUtils::normalizePath(icu_path);
+#ifndef _WIN32
       setenv("ICU_DATA", icu_path.c_str(), 1);
+#else
+      SetEnvironmentVariable("ICU_DATA", icu_path.c_str());
+#endif
     }
   }