diff --git a/src/easymode.cpp b/src/easymode.cpp
index 2fb49b9..a2d90d1 100755
--- a/src/easymode.cpp
+++ b/src/easymode.cpp
@@ -391,17 +391,15 @@ int format_handler(void *user, const char *section, const char *name, const char
 }
 
 inline void join_paths(std::filesystem::path &p, std::initializer_list<const char*> list)
-{
-    for (const char *item : list) { // Appending null string will cause segfault
-        if (item == NULL)
-            return;
-    }
-    
+{    
     auto it = list.begin();
     p = *it;
     it++;
-    for (it; it != list.end(); ++it)
+    for (it; it != list.end(); ++it) {
+        if (*it == NULL)
+            return;
         p /= *it;
+    }
 }
 
 static void load_preset(const char *preset)
diff --git a/src/easymode.hpp b/src/easymode.hpp
index 506a239..3c4d669 100755
--- a/src/easymode.hpp
+++ b/src/easymode.hpp
@@ -32,7 +32,6 @@ class WorkerThread {
         std::mutex thread_mutex;
         std::thread *thread;
         std::condition_variable thread_cv;
-
 };
 
 void easy_mode(int argc, char *argv[]);
diff --git a/src/rsgain.cpp b/src/rsgain.cpp
index 38ce895..0c285e7 100755
--- a/src/rsgain.cpp
+++ b/src/rsgain.cpp
@@ -247,10 +247,6 @@ static void custom_mode(int argc, char *argv[])
             case 'o':
                 parse_opus_mode(optarg, config.opus_mode);
                 break;
-
-            case '?':
-                help_custom();
-                quit(EXIT_FAILURE);
                 
             case 'h':
                 help_custom();
diff --git a/src/scan.cpp b/src/scan.cpp
index 5665a05..8fd8471 100755
--- a/src/scan.cpp
+++ b/src/scan.cpp
@@ -86,7 +86,6 @@ FileType ScanJob::add_directory(std::filesystem::path &path)
     std::set<FileType> extensions;
     std::vector<std::string> file_list;
     FileType file_type;
-    size_t num_extensions;
 
     // Determine directory filetype
     for (const std::filesystem::directory_entry &entry : std::filesystem::directory_iterator(path)) {
@@ -97,16 +96,14 @@ FileType ScanJob::add_directory(std::filesystem::path &path)
         if (file_type != FileType::INVALID)
             extensions.insert(file_type);
     }
-    num_extensions = extensions.size();
-    if (num_extensions != 1) 
+    if (extensions.size() != 1) 
         return FileType::INVALID;
     file_type = *extensions.begin();
 
     // Generate vector of files with directory file type
     for (const std::filesystem::directory_entry &entry : std::filesystem::directory_iterator(path)) {
-        if (!entry.is_regular_file() || !entry.path().has_extension())
-            continue;
-        if (determine_filetype(entry.path().extension().string()) == file_type)
+        if (entry.is_regular_file() && entry.path().has_extension() &&
+        determine_filetype(entry.path().extension().string()) == file_type)
             tracks.push_back(Track(entry.path().string(), file_type));
     }
     type = file_type;