diff --git a/src/gui/symbol/window.cpp b/src/gui/symbol/window.cpp
index 214dac7a..539c1e43 100644
--- a/src/gui/symbol/window.cpp
+++ b/src/gui/symbol/window.cpp
@@ -209,7 +209,7 @@ void SymbolWindow::onFileNew(wxCommandEvent& ev) {
 }
 
 void SymbolWindow::onFileOpen(wxCommandEvent& ev) {
-  String name = wxFileSelector(_("Open symbol"),settings.default_symbol_dir,_(""),_(""),_("Symbol files|*.mse-symbol;*.bmp|MSE2 symbol files (*.mse-symbol)|*.mse-symbol|Images/MSE1 symbol files|*.bmp;*.png;*.jpg;*.gif"),wxFD_OPEN|wxFD_FILE_MUST_EXIST, this);
+  String name = wxFileSelector(_("Open symbol"),settings.default_symbol_dir,_(""),_(""),_("All files|*.mse-symbol;*.bmp;*.jpg;*.jpeg;*.png;*.webp;*.gif;*.tif;*.tiff|MSE2 symbol files (*.mse-symbol)|*.mse-symbol|Images/MSE1 symbol files|*.bmp;*.jpg;*.jpeg;*.png;*.webp;*.gif;*.tif;*.tiff"),wxFD_OPEN|wxFD_FILE_MUST_EXIST, this);
   if (!name.empty()) {
     settings.default_symbol_dir = wxPathOnly(name);
     wxFileName n(name);
@@ -221,8 +221,11 @@ void SymbolWindow::onFileOpen(wxCommandEvent& ev) {
       reader.handle_greedy(symbol);
     } else {
       wxBusyCursor busy;
-      Image image(name);
-      if (!image.Ok()) return;
+      Image image(name);
+      if (!image.Ok()) {
+        queue_message(MESSAGE_ERROR, _ERROR_("can't load image"));
+        return;
+      }
       symbol = import_symbol(image);
     }
     // show...
diff --git a/src/gui/value/image.cpp b/src/gui/value/image.cpp
index c2ff0d68..c92066ae 100644
--- a/src/gui/value/image.cpp
+++ b/src/gui/value/image.cpp
@@ -34,7 +34,7 @@ bool ImageValueEditor::onLeftDClick(const RealPoint&, wxMouseEvent&) {
     }
   }
   filename = wxFileSelector(_("Open image file"), directory, filename, _(""),
-                                 _("All images|*.bmp;*.jpg;*.jpeg;*.png;*.gif;*.tif;*.tiff|Windows bitmaps (*.bmp)|*.bmp|JPEG images (*.jpg;*.jpeg)|*.jpg;*.jpeg|PNG images (*.png)|*.png|GIF images (*.gif)|*.gif|TIFF images (*.tif;*.tiff)|*.tif;*.tiff"),
+                                 _("All images|*.bmp;*.jpg;*.jpeg;*.png;*.webp;*.gif;*.tif;*.tiff|Windows bitmaps (*.bmp)|*.bmp|JPEG images (*.jpg;*.jpeg)|*.jpg;*.jpeg|PNG images (*.png)|*.png|WebP images (*.webp)|*.webp|GIF images (*.gif)|*.gif|TIFF images (*.tif;*.tiff)|*.tif;*.tiff"),
                                  wxFD_OPEN, wxGetTopLevelParent(&editor()));
   if (!filename.empty()) {
     settings.default_image_dir = wxPathOnly(filename);
@@ -42,8 +42,9 @@ bool ImageValueEditor::onLeftDClick(const RealPoint&, wxMouseEvent&) {
     {
       wxLogNull noLog;
       image = wxImage(filename);
-    }
-    sliceImage(image, filename, cardname);
+    }
+    if (!image.Ok()) queue_message(MESSAGE_ERROR, _ERROR_("can't load image"));
+    else sliceImage(image, filename, cardname);
   }
   return true;
 }