diff --git a/tools/check-coverage.awk b/tools/check-coverage.awk
index 4f3e15d..2fdbb12 100755
--- a/tools/check-coverage.awk
+++ b/tools/check-coverage.awk
@@ -5,7 +5,7 @@ BEGIN {
 	# assigned glyph counts in blocks (referenced by lowest codepoint)
 	ASSIGNED[hex("0000")] = 95; # ascii
 	ASSIGNED[hex("0080")] = 96; # latin1
-	ASSIGNED[hex("0370")] = 144; # greek&coptic
+	ASSIGNED[hex("0370")] = 135; # greek&coptic
 	ASSIGNED[hex("2000")] = 83; # general punct.
 	ASSIGNED[hex("FFF0")] = 5;
 }