diff --git a/documentation/telemac2d/user/latex/appendix5.tex b/documentation/telemac2d/user/latex/appendix5.tex
index c35570f661bbbb44fd9aa87a606a73006cca2741..63c855b7a9a7ee9ff18cd1859a7fe90acbf86e20 100644
--- a/documentation/telemac2d/user/latex/appendix5.tex
+++ b/documentation/telemac2d/user/latex/appendix5.tex
@@ -94,7 +94,7 @@ Ch\'{e}zy & 2 & CHEZ & Roughness coefficient \\ \hline
 Strickler & 3 & STRI & Roughness coefficient \\ \hline
 Manning & 4 & MANN & Roughness coefficient \\ \hline
 Nikuradse & 5 & NIKU & Roughness coefficient \\ \hline
-Colebrook-White & 7 & COWH & Roughness coefficient\newline Manning coefficient \\ \hline
+Colebrook-White & 6 & COWH & Roughness coefficient\newline Manning coefficient \\ \hline
 \end{tabular}
 
 
diff --git a/sources/telemac2d/friction_calc.f b/sources/telemac2d/friction_calc.f
index 575cb5903e60d4da6bfee236b681a3deab0bdc0a..45b5d50227ff3ef776f2f82fd49e573ac93ded0a 100644
--- a/sources/telemac2d/friction_calc.f
+++ b/sources/telemac2d/friction_calc.f
@@ -240,12 +240,6 @@
               WRITE(LU,*) "CHECK 'FRICTION COEFFICIENT' "
               WRITE(LU,*) "OR 'LAW OF BOTTOM FRICTION' "
             ENDIF
-            IF (CF%R(I) .LT. 2.D-4) THEN
-              WRITE(LU,*) "WARNING: EXTREMLY LOW VALUE OF FRICTION"
-              WRITE(LU,*) "CF = ", CF%R(I)
-              WRITE(LU,*) "CHECK 'FRICTION COEFFICIENT' "
-              WRITE(LU,*) "OR 'LAW OF BOTTOM FRICTION' "
-            ENDIF
           ENDDO
         ENDIF
       ENDIF
diff --git a/sources/telemac2d/friction_read.f b/sources/telemac2d/friction_read.f
index ff81196d9f9fa30d2b8915efbe66b238f4676d44..9cfebe25291114d74f45ee3166387c2b241b801a 100644
--- a/sources/telemac2d/friction_read.f
+++ b/sources/telemac2d/friction_read.f
@@ -218,13 +218,13 @@
           STOP
         ENDIF
         READ(NCOF,*,END=999,ERR=901) (CHAINE(J),J=1,N),LAW,R1
-        FRTAB%ADR(IZONE)%P%RTYPE = 6
+        FRTAB%ADR(IZONE)%P%RTYPE = 7
         FRTAB%ADR(IZONE)%P%RCOEF = R1
         FRTAB%ADR(IZONE)%P%NDEF  = 0.D0
         N = N + 2
       CASE('COWH')
         READ(NCOF,*,END=999,ERR=907) (CHAINE(J),J=1,N),LAW,R1,R2
-        FRTAB%ADR(IZONE)%P%RTYPE = 7
+        FRTAB%ADR(IZONE)%P%RTYPE = 6
         FRTAB%ADR(IZONE)%P%RCOEF = R1
         FRTAB%ADR(IZONE)%P%NDEF  = R2
         N = N + 3