diff --git a/src/memray/_memray/hooks.cpp b/src/memray/_memray/hooks.cpp
index 6eed7d0ee1..00990e3b93 100644
--- a/src/memray/_memray/hooks.cpp
+++ b/src/memray/_memray/hooks.cpp
@@ -321,14 +321,13 @@ dlopen(const char* filename, int flag) noexcept
             if (dladdr(callerAddr, &info)) {
                 const char* dlname = info.dli_fname;
                 {
-                    struct stat dlstat, exestat;
-                    // Check fi we are being called from the main executable
+                    // Check if we are being called from the main executable
                     Dl_info main_info;
                     void* main_sym = NULL;
-                    void* self_handle = dlopen(nullptr, RTLD_LAZY | RTLD_NOLOAD);
+                    void* self_handle = MEMRAY_ORIG(dlopen)(nullptr, RTLD_LAZY | RTLD_NOLOAD);
                     if (self_handle) {
                         main_sym = dlsym(self_handle, "main");
-                        dlclose(self_handle);
+                        MEMRAY_ORIG(dlclose)(self_handle);
                     }
                     if (main_sym && dladdr(main_sym, &main_info)
                         && strcmp(main_info.dli_fname, info.dli_fname) == 0)
@@ -341,22 +340,26 @@ dlopen(const char* filename, int flag) noexcept
                 if (caller != nullptr) {
                     Dl_serinfo size;
                     if (dlinfo(caller, RTLD_DI_SERINFOSIZE, &size) == 0) {
-                        auto* paths = reinterpret_cast<Dl_serinfo*>(new char[size.dls_size]);
+                        std::vector<char> paths_buf;
+                        paths_buf.resize(size.dls_size);
+                        auto paths = reinterpret_cast<Dl_serinfo*>(&paths_buf[0]);
                         *paths = size;
                         if (dlinfo(caller, RTLD_DI_SERINFO, paths) == 0) {
-                            for (unsigned i = 0; i != paths->dls_cnt; ++i) {
+                            for (unsigned int i = 0; i != paths->dls_cnt; ++i) {
                                 const char* name = paths->dls_serpath[i].dls_name;
                                 std::string path;
                                 if (name == nullptr || name[0] == '\0') {
                                     // In the dynamic linking search path, an
                                     // empty entry typically represents the
                                     // current working directory ($PWD).
-                                    path = filename;
-                                }
-                                path = name;
-                                if (path.back() != '/') {
-                                    path += '/';
+                                    path = "./";
+                                } else {
+                                    path = name;
+                                    if (path.back() != '/') {
+                                        path += '/';
+                                    }
                                 }
+
                                 path += filename;
                                 ret = MEMRAY_ORIG(dlopen)(path.c_str(), flag);
                                 if (ret) {
@@ -364,9 +367,8 @@ dlopen(const char* filename, int flag) noexcept
                                 }
                             }
                         }
-                        delete[] reinterpret_cast<char*>(paths);
                     }
-                    dlclose(caller);
+                    MEMRAY_ORIG(dlclose)(caller);
                 }
             }
         }