diff --git a/reference/math/functions/decbin.xml b/reference/math/functions/decbin.xml
index d6635543cb..1e8765cbde 100644
--- a/reference/math/functions/decbin.xml
+++ b/reference/math/functions/decbin.xml
@@ -131,7 +131,7 @@
          <row>
           <entry>9223372036854775807 (largest signed integer)</entry>
           <entry></entry>
-          <entry>111111111111111111111111111111111111111111111111111111111111111 (31 1's)</entry>
+          <entry>111111111111111111111111111111111111111111111111111111111111111 (63 1's)</entry>
          </row>
          <row>
           <entry></entry>