diff --git a/COPYRIGHT b/COPYRIGHT
index 31b7f47434e..fb2d6159e06 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -26,7 +26,7 @@ PHP libraries:
 EvalMath               1.0           BSD                         Yes             Safe math expressions evaluation. Used by dynamic price only. TODO Replace with dol_eval ?
 Escpos-php             3.0           MIT License                 Yes             Thermal receipt printer library, for use with ESC/POS compatible printers
 GeoIP2                 0.2.0         Apache License 2.0          Yes             Lib to make geoip convert
-MathPHP                2.8.1         MIT License                 Yes             Modern math library for PHP
+MathPHP                2.8.1         MIT License                 Yes             Modern math library for PHP (only few files)
 Mobiledetect           2.8.41        MIT License                 Yes             Detect mobile devices browsers
 NuSoap                 0.9.5         LGPL 2.1+                   Yes             Library to develop SOAP Web services (not into rpm and deb package)
 PEAR Mail_MIME         1.8.9         BSD                         Yes             NuSoap dependency