diff --git a/build/debian/README.howto b/build/debian/README.howto
index 6b6e71c487488..d0bdd4574f493 100644
--- a/build/debian/README.howto
+++ b/build/debian/README.howto
@@ -153,6 +153,7 @@ from origin/upstream and origin/pristine.
 
 * Into root dir, launch:
 > debian/get-orig-source.sh
+If script fails with error Bad certificate, you can set "export PERL_LWP_SSL_VERIFY_HOSTNAME=0 " to solve this.
 
 * Staying into git root directory, run
 > git-import-orig -vv ../tcpdf_x.y.z+dfsg.orig.tar.xz
@@ -162,7 +163,7 @@ Note: If there was errors solved manually, you may need to make a git commit
 * Add an entry into debian/changelog
 > dch -v x.y.z-dsfg-1 "My comment" will add entry.
 For example: dch -v x.y.z-dsfg-1 "New upstream release." for a new version
-Then modify changelog to replace "unstable" with "UNRELEASED".
+Then modify changelog to replace "version" or "unstable" with "UNRELEASED".
 
 Warning: Date must have format reported by "date -R"
 Warning: Name and email must match value into debian/control file (Entry added here is used by next step).
@@ -228,8 +229,13 @@ from origin/upstream and origin/pristine.
 
 * If new upstream is available onto sourceforge, launch:
 > debian/get-orig-source.sh
+If script fails with error Bad certificate, you can set "export PERL_LWP_SSL_VERIFY_HOSTNAME=0 " to solve this.
 
-* Edit tgz file to remove ckeditor and phpexcel and rename file into 
+* Edit tgz file to remove 
+- ckeditor
+- phpexcel
+- tcpdf
+And rename file into 
 dolibarr-x.y.z+dsfgw.tgz
 (x.y.z = version, w start from 1 and is increased for each new import)
 
@@ -244,7 +250,7 @@ Note: If there was errors solved manually after get-orig-sources.sh, you may nee
 * Add an entry into debian/changelog
 > dch -v x.y.z-w "My comment" will add entry.
 For example: dch -v x.y.z-w "New upstream release." for a new version (x.y.z = version, w start from 1 and increaed for each new import)
-Then modify changelog to replace "unstable" with "UNRELEASED".
+Then modify changelog to replace "version" or "unstable" with "UNRELEASED".
 Then check/modify also the user/date signature:
 - Date must have format reported by "date -R"
 - Name and email must match value into debian/control file (Entry added here is used by next step).