diff --git a/share/schema.sql b/share/schema.sql
index 9a81919..31cd5c7 100644
--- a/share/schema.sql
+++ b/share/schema.sql
@@ -5,7 +5,7 @@ CREATE TABLE source_files (
 	size		INTEGER NOT NULL,
 	hash		TEXT,
 	mime_type	INTEGER,
-	last_change	INTEGER NOT NULL DEFAULT (strftime('%s','now')),
+	last_change	FLOAT	NOT NULL DEFAULT (strftime('%s','now')),
 	last_seen	INTEGER	NOT NULL DEFAULT (strftime('%s','now')),
 	FOREIGN KEY	(mime_type)	REFERENCES mime_types(id)
 		ON DELETE SET NULL
@@ -17,7 +17,7 @@ CREATE TABLE destinations (
 CREATE TABLE destination_files (
 	id		INTEGER PRIMARY KEY,
 	filename	TEXT,
-	last_change	INTEGER	NOT NULL DEFAULT 0,
+	last_change	FLOAT	NOT NULL DEFAULT 0,
 	source_file_id	INTEGER,
 	destination_id	INTEGER,
 	FOREIGN KEY	(source_file_id)	REFERENCES source_files(id)
@@ -52,7 +52,7 @@ CREATE TABLE tags (
 	performer	TEXT,
 	rate		INTEGER,
 	channels	INTEGER,
-	last_change	INTEGER,
+	last_change	FLOAT,
 	FOREIGN KEY (source_file)	REFERENCES source_files(id)
 		ON DELETE CASCADE
 );