diff --git a/include/SampleThumbnail.h b/include/SampleThumbnail.h
index d39f107b0e5..833e22e9a5c 100644
--- a/include/SampleThumbnail.h
+++ b/include/SampleThumbnail.h
@@ -129,7 +129,7 @@ class LMMS_EXPORT SampleThumbnailListManager
 
 };
 	
-}
+} // namespace lmms
 
 
 
diff --git a/src/gui/SampleThumbnail.cpp b/src/gui/SampleThumbnail.cpp
index 90fbacbe1d5..74b5d22fa49 100644
--- a/src/gui/SampleThumbnail.cpp
+++ b/src/gui/SampleThumbnail.cpp
@@ -415,4 +415,4 @@ void SampleThumbnailListManager::visualize_original(
 }
 
 
-}
+} // namespace lmms