diff --git a/crates/ignore/src/default_types.rs b/crates/ignore/src/default_types.rs
index c0ca95b6..edb0af0a 100644
--- a/crates/ignore/src/default_types.rs
+++ b/crates/ignore/src/default_types.rs
@@ -160,6 +160,7 @@ pub const DEFAULT_TYPES: &[(&str, &[&str])] = &[
     ("motoko", &["*.mo"]),
     ("msbuild", &[
         "*.csproj", "*.fsproj", "*.vcxproj", "*.proj", "*.props", "*.targets",
+        "*.sln",
     ]),
     ("nim", &["*.nim", "*.nimf", "*.nimble", "*.nims"]),
     ("nix", &["*.nix"]),