autoload/handlers.vim | 5 ++++-
 doc/lsp.txt           | 4 ++--

diff --git a/autoload/handlers.vim b/autoload/handlers.vim
index 0c7834290a7d6dc28226eaa9d7b283c17c31ab6e..65c19887381ad9ab670c28f257d4aa994b9568c8 100644
--- a/autoload/handlers.vim
+++ b/autoload/handlers.vim
@@ -132,7 +132,10 @@     var params_len = sig.parameters->len()
     if params_len > 0 && result.activeParameter < params_len
       var label = ''
       if sig.parameters[result.activeParameter]->has_key('documentation')
-        label = sig.parameters[result.activeParameter].documentation
+	if sig.parameters[result.activeParameter].documentation->type()
+							    == v:t_string
+          label = sig.parameters[result.activeParameter].documentation
+        endif
       else
         label = sig.parameters[result.activeParameter].label
       endif
diff --git a/doc/lsp.txt b/doc/lsp.txt
index 6e60664c8fa10a7f1216287fbec38ce27501e355..f27fb57f6944f423c44f6d2ccc6b2f2e17e502f2 100644
--- a/doc/lsp.txt
+++ b/doc/lsp.txt
@@ -243,14 +243,14 @@ 			separator (e.g. a opening parenthesis). To disable
 			this, you can set the showSignature option to false in
 			your .vimrc file: >
 
-			    call lsp#setOptions({showSignature: v:false})
+			    call lsp#setOptions({'showSignature': v:false})
 <
 			Default is true.
 
 			You can get the function signature echoed in cmdline
 			rather than displayed in popup if you use >
 
-			    call lsp#setOptions({echoSignature: v:true})
+			    call lsp#setOptions({'echoSignature': v:true})
 <
 			Default is false.