diff --git a/src/base/ftobjs.c b/src/base/ftobjs.c
index b4ec9b6d1..370730825 100644
--- a/src/base/ftobjs.c
+++ b/src/base/ftobjs.c
@@ -109,6 +109,9 @@
     if ( !Q )
       goto Fail;
 
+    if ( size > current )
+      memset( (char*)Q + current, 0, size - current );
+
     *P = Q;
     return FT_Err_Ok;