diff --git a/.editorconfig b/.editorconfig
index e884e2a..1a7a342 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -10,6 +10,9 @@ root = true
 # All files
 [*]
 indent_style = space
+# Solution files (auto-generated, but sometimes manually edited)
+[*.sln]
+indent_style = tab
 # Code files
 [*.{cs,csx,vb,vbx}]
 indent_size = 4