diff --git a/src/sfnt/ttmtx.c b/src/sfnt/ttmtx.c
index 5aa4b810a..e3eff2965 100644
--- a/src/sfnt/ttmtx.c
+++ b/src/sfnt/ttmtx.c
@@ -358,7 +358,7 @@
       table_size = face->horz_metrics_size;
     }
 
-    table_end = table_pos + table_end;
+    table_end = table_pos + table_size;
 
     k = header->number_Of_HMetrics;