diff --git a/basic/source/sbx/sbxconv.hxx b/basic/source/sbx/sbxconv.hxx
index 39db08076044..34a9ba324b93 100644
--- a/basic/source/sbx/sbxconv.hxx
+++ b/basic/source/sbx/sbxconv.hxx
@@ -28,6 +28,10 @@ double lround(double d)
 {
     return d + ( d < 0 ? -0.5 : 0.5 );
 }
+double llround(double d)
+{
+    return d + ( d < 0 ? -0.5 : 0.5 );
+}
 }
 #endif