diff --git a/.dockerignore b/.dockerignore
index b1b026d8b31b4d..8bf5252822b1d3 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -61,6 +61,7 @@
 **/*.obj
 **/*.pch
 **/*.pdb
+!**/_.pdb
 **/*.pgc
 **/*.pgd
 **/*.rsp