diff --git a/examples/formatter-csharpier.toml b/examples/formatter-csharpier.toml
index 0b4e2ee..bcfddac 100644
--- a/examples/formatter-csharpier.toml
+++ b/examples/formatter-csharpier.toml
@@ -2,5 +2,5 @@
 [formatter.csharpier]
 command = "csharpier"
 excludes = []
-includes = ["*.cs", "*.csproj"]
+includes = ["*.cs", "*.csproj", "*.slnx", "*.xaml"]
 options = ["format"]
diff --git a/programs/csharpier.nix b/programs/csharpier.nix
index 0516c96..c298d73 100644
--- a/programs/csharpier.nix
+++ b/programs/csharpier.nix
@@ -13,7 +13,8 @@
       includes = [
         "*.cs"
         "*.csproj"
-        # "*.slnx" # add this with 1.0.3 release
+        "*.slnx" # support added in 1.1.0
+        "*.xaml" # support added in 1.1.0
       ];
     })
   ];