diff --git a/src/autofit/afcjk.h b/src/autofit/afcjk.h
index f380ef6e0..20dad4d72 100644
--- a/src/autofit/afcjk.h
+++ b/src/autofit/afcjk.h
@@ -84,7 +84,7 @@ FT_BEGIN_HEADER
     /* used for horizontal metrics too for CJK */
     FT_Bool        control_overshoot;
     FT_UInt        blue_count;
-    AF_CJKBlueRec  blues[AF_BLUE_STRINGSET_MAX];
+    AF_CJKBlueRec  blues[AF_BLUE_STRINGSET_MAX_LEN];
 
     FT_Fixed       org_scale;
     FT_Pos         org_delta;
diff --git a/src/autofit/aflatin.h b/src/autofit/aflatin.h
index 31aa91d3b..22435d5a0 100644
--- a/src/autofit/aflatin.h
+++ b/src/autofit/aflatin.h
@@ -98,7 +98,7 @@ FT_BEGIN_HEADER
 
     /* ignored for horizontal metrics */
     FT_UInt          blue_count;
-    AF_LatinBlueRec  blues[AF_BLUE_STRINGSET_MAX];
+    AF_LatinBlueRec  blues[AF_BLUE_STRINGSET_MAX_LEN];
 
     FT_Fixed         org_scale;
     FT_Pos           org_delta;