diff --git a/src/regexp.c b/src/regexp.c
index 29b4081..c7b25c2 100644
--- a/src/regexp.c
+++ b/src/regexp.c
@@ -6899,7 +6899,7 @@
 {
     decomp_T d;
 
-    if (c >= 0x4b20 && c <= 0xfb4f)
+    if (c >= 0xfb20 && c <= 0xfb4f)
     {
 	d = decomp_table[c - 0xfb20];
 	*c1 = d.a;