diff --git a/math-ini.mkiv b/math-ini.mkiv
index 828a6ec..9dbadc1 100644
--- a/math-ini.mkiv
+++ b/math-ini.mkiv
@@ -54,8 +54,8 @@
 
 % todo: only in mmode
 
-\unexpanded\def\mathgreekupright{\attribute\mathgreekattribute11 }
-\unexpanded\def\mathgreekitalic {\attribute\mathgreekattribute22 }
+\unexpanded\def\mathgreekupright{\attribute\mathgreekattribute22 }
+\unexpanded\def\mathgreekitalic {\attribute\mathgreekattribute33 }
 \unexpanded\def\mathgreekdefault{\attribute\mathgreekattribute\attributeunsetvalue}
 
 \let\mathgreeknormal\mathgreekupright
diff --git a/math-map.lua b/math-map.lua
index 2d34dc1..d3e8cc1 100644
--- a/math-map.lua
+++ b/math-map.lua
@@ -303,9 +303,9 @@ alphabets.monospaced.it         = alphabets.sansserif.tf
 alphabets.monospaced.bf         = alphabets.sansserif.tf
 alphabets.monospaced.bi         = alphabets.sansserif.bf
 
-alphabets.blackboard.tf.symbols = table.merge(alphabets.regular.tf.symbols, alphabets.blackboard.tf.symbols)
-alphabets.blackboard.tf.lcgreek = table.merge(alphabets.regular.tf.lcgreek, alphabets.blackboard.tf.lcgreek)
-alphabets.blackboard.tf.ucgreek = table.merge(alphabets.regular.tf.ucgreek, alphabets.blackboard.tf.ucgreek)
+alphabets.blackboard.tf.symbols = table.merged(alphabets.regular.tf.symbols, alphabets.blackboard.tf.symbols)
+alphabets.blackboard.tf.lcgreek = table.merged(alphabets.regular.tf.lcgreek, alphabets.blackboard.tf.lcgreek)
+alphabets.blackboard.tf.ucgreek = table.merged(alphabets.regular.tf.ucgreek, alphabets.blackboard.tf.ucgreek)
 
 alphabets.blackboard.it         = alphabets.blackboard.tf
 alphabets.blackboard.bf         = alphabets.blackboard.tf