autoload/buf.vim | 2 +-

diff --git a/autoload/buf.vim b/autoload/buf.vim
index 541031083c98ce6aef276e94ec8596ec6393c3e2..fcbc51fd1005ef7aa81c6f0273dc5c989c23ef70 100644
--- a/autoload/buf.vim
+++ b/autoload/buf.vim
@@ -17,7 +17,7 @@     return
   endif
 
   # Remove all the existing diagnostic signs
-  sign_unplace('LSPDiag')
+  sign_unplace('LSPDiag', {buffer: bnr})
 
   if lspserver.diagsMap[bnr]->empty()
     return