diff --git a/symlinks/config/nvim/lua/plugin/projectionist.lua b/symlinks/config/nvim/lua/plugin/projectionist.lua
index 770512a..e813a34 100644
--- a/symlinks/config/nvim/lua/plugin/projectionist.lua
+++ b/symlinks/config/nvim/lua/plugin/projectionist.lua
@@ -166,6 +166,10 @@ local dotnet_solution_config = {
     type = "service",
     alternate = "tests/{dirname}.Tests/Services/{basename}Tests.cs"
   },
+  ["src/**/Extensions/*.cs"] = {
+    type = "extension",
+    alternate = "tests/{dirname}.Tests/Extensions/{basename}Tests.cs"
+  },
   ["src/**/appsettings*json"] = {
     type = "appsettings"
   },
@@ -203,6 +207,10 @@ local dotnet_solution_config = {
     type = "test",
     alternate = "src/{dirname}/Services/{basename}.cs"
   },
+  ["tests/**.Tests/Extensions/*Tests.cs"] = {
+    type = "test",
+    alternate = "src/{dirname}/Extensions/{basename}.cs"
+  },
   ["tests/**/*Tests.cs"] = {
     type = "test",
     alternate = "src/{dirname}/{basename}.cs",