diff --git a/README.md b/README.md
index 388f9bd5c2..167e4faf76 100644
--- a/README.md
+++ b/README.md
@@ -90,7 +90,7 @@ Then install the following packages:
   install expat libraries with its development files and install xmlparser
   using gem:
 
-        $ sudo gem install xmlparser --no-ri --no-rdoc
+        $ sudo gem install xmlparser --no-document
 
   Note the extra parameters to gem install. Some versions of xmlparser have
   problems building the documentation and we can use it without documentation
@@ -98,7 +98,7 @@ Then install the following packages:
 
 * **ruby ox**, fast xml parsing library:
 
-        $ sudo gem install ox --no-ri --no-rdoc
+        $ sudo gem install ox --no-document
 
 
 ### Building
diff --git a/share/install_gems/install_gems b/share/install_gems/install_gems
index 318c8f726d..db9052af53 100755
--- a/share/install_gems/install_gems
+++ b/share/install_gems/install_gems
@@ -206,7 +206,7 @@ EOT
 end
 
 def installed_gems
-    text=`gem list --no-versions --no-details`
+    text=`gem list --no-versions`
     if $?.exitstatus!=0
         nil
     else
@@ -498,7 +498,7 @@ EOT
         end.join(' ')+' '
     end
 
-    command_string = "#{prefix}gem install --no-ri --no-rdoc"
+    command_string = "#{prefix}gem install --no-document"
 
     install_warning(packages)