diff --git a/src/modules/dotnet.rs b/src/modules/dotnet.rs
index 592bd59e6..2c0169ba0 100644
--- a/src/modules/dotnet.rs
+++ b/src/modules/dotnet.rs
@@ -19,11 +19,20 @@ const PROJECT_JSON_FILE: &str = "project.json";
 /// the current directory:
 /// global.json, project.json, *.sln, *.csproj, *.fsproj, *.xproj
 pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
-    let dotnet_files = get_local_dotnet_files(context).ok()?;
-    if dotnet_files.is_empty() {
+    // First check if this is a DotNet Project before doing the O(n)
+    // check for the version using the JSON files
+    let is_dotnet_project = context
+        .try_begin_scan()?
+        .set_files(&[GLOBAL_JSON_FILE, PROJECT_JSON_FILE])
+        .set_extensions(&["sln", "csproj", "fsproj", "xproj"])
+        .is_match();
+
+    if !is_dotnet_project {
         return None;
     }
 
+    let dotnet_files = get_local_dotnet_files(context).ok()?;
+
     let mut module = context.new_module("dotnet");
     let config = DotnetConfig::try_load(module.config);