diff --git a/src/media_server_app.cpp b/src/media_server_app.cpp
index d879719..7d00a1a 100644
--- a/src/media_server_app.cpp
+++ b/src/media_server_app.cpp
@@ -3,6 +3,12 @@
 #include <iostream>
 #include <signal.h>
 #include <string>
+#include <cstdlib>
+
+#if defined(__linux__)
+#include <limits.h>
+#include <unistd.h>
+#endif
 
 #include "graph_manager.h"
 #include "utils/simple_json.h"
@@ -13,8 +19,28 @@ namespace {
 
 GraphManager* g_manager = nullptr;
 
+std::string ResolvePluginDir() {
+    if (const char* env = std::getenv("RK_PLUGIN_DIR")) {
+        return std::string(env);
+    }
+
+#if defined(__linux__)
+    char path[PATH_MAX] = {0};
+    ssize_t len = readlink("/proc/self/exe", path, sizeof(path) - 1);
+    if (len > 0) {
+        std::string exe_path(path, static_cast<size_t>(len));
+        auto pos = exe_path.find_last_of('/');
+        if (pos != std::string::npos) {
+            return exe_path.substr(0, pos) + "/plugins";
+        }
+    }
+#endif
+
+    return std::string("plugins");
+}
+
 GraphManager& GetManager() {
-    static GraphManager mgr;
+    static GraphManager mgr(ResolvePluginDir());
     return mgr;
 }