diff --git a/sysui/desktop/menus/math.desktop b/sysui/desktop/menus/math.desktop
index 5a8192a..d2391be 100644
--- a/sysui/desktop/menus/math.desktop
+++ b/sysui/desktop/menus/math.desktop
@@ -21,7 +21,7 @@ Terminal=false
 NoDisplay=false
 Icon=math
 Type=Application
-Categories=Office;Education;Science;Math;X-Red-Hat-Base;X-MandrivaLinux-Office-Other;
+Categories=Office;Spreadsheet;Education;Science;Math;X-Red-Hat-Base;X-MandrivaLinux-Office-Other;
 Exec=${UNIXBASISROOTNAME} --math %%FILE%%
 MimeType=application/vnd.oasis.opendocument.formula;application/vnd.sun.xml.math;application/vnd.oasis.opendocument.formula-template;text/mathml;application/mathml+xml;
 Name=%PRODUCTNAME Math