diff --git a/documentation/telemac2d/user/latex/chap6.tex b/documentation/telemac2d/user/latex/chap6.tex
index c9c0ca6f5fcd688d6778f2119e0c42ecb7d01cfb..ac763ea051cf7bd36af26ced4ef75adafb0c8fe6 100644
--- a/documentation/telemac2d/user/latex/chap6.tex
+++ b/documentation/telemac2d/user/latex/chap6.tex
@@ -125,8 +125,8 @@ This consideration may still be enabled using the keyword
 This keyword offers the same option than the keyword
 \telkey{LAW OF BOTTOM FRICTION} described above.
 The coefficient of friction to take into account is then provided
-by the keyword \telkey{FRICTION COEFFICIENT FOR LATERAL SOLID BOUNDARIES}
-(default value = 60!) if it is constant on all solid boundaries.
+by the keyword \telkey{ROUGHNESS COEFFICIENT OF BOUNDARIES}
+(default value = 100) if it is constant on all solid boundaries.
 If this value varies spatially, the user can fill the column \telfile{AUBOR}
 in the \telkey{BOUNDARY CONDITIONS FILE} (see Section \ref{sub:bc:file}).
 \telfile{AUBOR} is then considered as a quadratic coefficient whose