diff --git a/src/screen_capturer/linux/screen_capturer_x11.cpp b/src/screen_capturer/linux/screen_capturer_x11.cpp
index d928fd7..c389d5c 100644
--- a/src/screen_capturer/linux/screen_capturer_x11.cpp
+++ b/src/screen_capturer/linux/screen_capturer_x11.cpp
@@ -36,9 +36,21 @@ int ScreenCapturerX11::Init(const int fps, cb_desktop_data cb) {
       XRRCrtcInfo* crtc_info =
           XRRGetCrtcInfo(display_, screen_res_, output_info->crtc);
 
-      display_info_list_.push_back(
-          DisplayInfo((void*)display_, output_info->name, true, crtc_info->x,
-                      crtc_info->y, crtc_info->width, crtc_info->height));
+      std::string name(output_info->name);
+
+      if (name.empty()) {
+        name = "Display" + std::to_string(i + 1);
+      }
+
+      // clean display name, remove non-alphanumeric characters
+      name.erase(
+          std::remove_if(name.begin(), name.end(),
+                         [](unsigned char c) { return !std::isalnum(c); }),
+          name.end());
+
+      display_info_list_.push_back(DisplayInfo(
+          (void*)display_, name, true, crtc_info->x, crtc_info->y,
+          crtc_info->x + crtc_info->width, crtc_info->y + crtc_info->height));
 
       XRRFreeCrtcInfo(crtc_info);
     }
diff --git a/src/screen_capturer/macosx/screen_capturer_sck_impl.mm b/src/screen_capturer/macosx/screen_capturer_sck_impl.mm
index 002ca71..0e59c3d 100644
--- a/src/screen_capturer/macosx/screen_capturer_sck_impl.mm
+++ b/src/screen_capturer/macosx/screen_capturer_sck_impl.mm
@@ -226,13 +226,17 @@ int ScreenCapturerSckImpl::Init(const int fps, cb_desktop_data cb) {
     CGRect bounds = CGDisplayBounds(display_id);
     bool is_primary = CGDisplayIsMain(display_id);
 
-    std::string name;
-    name = GetDisplayName(display_id);
+    std::string name = GetDisplayName(display_id);
 
     if (name.empty()) {
-      name = "Display " + std::to_string(unnamed_count++);
+      name = "Display" + std::to_string(unnamed_count++);
     }
 
+    // clean display name, remove non-alphanumeric characters
+    name.erase(
+        std::remove_if(name.begin(), name.end(), [](unsigned char c) { return !std::isalnum(c); }),
+        name.end());
+
     DisplayInfo info((void *)(uintptr_t)display_id, name, is_primary,
                      static_cast<int>(bounds.origin.x), static_cast<int>(bounds.origin.y),
                      static_cast<int>(bounds.origin.x + bounds.size.width),