diff --git a/src/insert.zig b/src/insert.zig
index 9a320aa..e1c0c4e 100644
--- a/src/insert.zig
+++ b/src/insert.zig
@@ -299,7 +299,8 @@ pub fn RepositoryInsert(comptime Model: type, comptime TableShape: type, comptim
 			if (self.sql) |_| {} else { try self.buildSql(); }
 
 			// Execute query and get its result.
-			const queryResult = try self.execQuery();
+			var queryResult = try self.execQuery();
+			defer queryResult.deinit();
 
 			//TODO deduplicate this in postgresql.zig, we could do it if Mapper type was exposed.
 			//TODO make a generic mapper and do it in repository.zig?
diff --git a/src/query.zig b/src/query.zig
index c804579..a462810 100644
--- a/src/query.zig
+++ b/src/query.zig
@@ -216,7 +216,8 @@ pub fn RepositoryQuery(comptime Model: type, comptime TableShape: type, comptime
 			if (self.sql) |_| {} else { try self.buildSql(); }
 
 			// Execute query and get its result.
-			const queryResult = try self.execQuery();
+			var queryResult = try self.execQuery();
+			defer queryResult.deinit();
 
 			//TODO deduplicate this in postgresql.zig, we could do it if Mapper type was exposed.
 			//TODO make a generic mapper and do it in repository.zig?
diff --git a/src/update.zig b/src/update.zig
index 321d3b4..88b38a2 100644
--- a/src/update.zig
+++ b/src/update.zig
@@ -303,7 +303,8 @@ pub fn RepositoryUpdate(comptime Model: type, comptime TableShape: type, comptim
 			if (self.sql) |_| {} else { try self.buildSql(); }
 
 			// Execute query and get its result.
-			const queryResult = try self.execQuery();
+			var queryResult = try self.execQuery();
+			defer queryResult.deinit();
 
 			//TODO deduplicate this in postgresql.zig, we could do it if Mapper type was exposed.
 			//TODO make a generic mapper and do it in repository.zig?