diff --git a/src/Config.cpp b/src/Config.cpp
index 5c768c07c..901d93ccb 100644
--- a/src/Config.cpp
+++ b/src/Config.cpp
@@ -202,6 +202,16 @@ class ConfigInternal {
       }
     }
 
+    const char* envPath = std::getenv("OPENCC_SHARED_DIR");
+    if (envPath != nullptr) {
+      std::string path(envPath);
+      path += '/' + fileName;
+      ifs.open(UTF8Util::GetPlatformString(path).c_str());
+      if (ifs.is_open()) {
+        return path;
+      }
+    }
+
     throw FileNotFound(fileName);
   }
 };