diff --git a/caching/cache_metadata_size.cc b/caching/cache_metadata_size.cc
index 6ead5c7..7584da6 100644
--- a/caching/cache_metadata_size.cc
+++ b/caching/cache_metadata_size.cc
@@ -110,7 +110,7 @@ namespace {
 
 		if (fs.block_size && !fs.device_size)
 			throw runtime_error("If you specify --block-size you must also give --device-size.");
-		
+
 		if (fs.nr_blocks)
 			return *fs.nr_blocks;