diff --git a/src/spikeinterface/core/waveform_extractor.py b/src/spikeinterface/core/waveform_extractor.py
index a2b58daa24..c97a727340 100644
--- a/src/spikeinterface/core/waveform_extractor.py
+++ b/src/spikeinterface/core/waveform_extractor.py
@@ -276,7 +276,7 @@ def create(
                 if remove_if_exists:
                     shutil.rmtree(folder)
                 else:
-                    raise FileExistsError("Folder already exists")
+                    raise FileExistsError(f"Folder {folder} already exists")
             folder.mkdir(parents=True)
 
             if use_relative_path: