diff --git a/CHANGELOG.md b/CHANGELOG.md
index 819a6e5a..85337508 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,9 @@
 ## master (unreleased)
 
 * [#1910](https://github.com/bbatsov/projectile/pull/1910): Reverts [#1895](https://github.com/bbatsov/projectile/pull/1895) as those changes appear to cause a significant performance regression across a number of use-cases.
+* [#1915](https://github.com/bbatsov/projectile/pull/1915): Fix
+  dotnet-sln project-type recognition (check `*.sln` files instead of
+  `src/`)
 
 ### New features
 
diff --git a/projectile.el b/projectile.el
index 49e49bc4..4eda5d05 100644
--- a/projectile.el
+++ b/projectile.el
@@ -3058,6 +3058,12 @@ it acts on the current project."
   (or (projectile-verify-file-wildcard "?*.csproj" dir)
       (projectile-verify-file-wildcard "?*.fsproj" dir)))
 
+(defun projectile-dotnet-sln-project-p (&optional dir)
+  "Check if a project contains a .NET solution project marker.
+When DIR is specified it checks DIR's project, otherwise
+it acts on the current project."
+  (or (projectile-verify-file-wildcard "?*.sln" dir)))
+
 (defun projectile-go-project-p (&optional dir)
   "Check if a project contains Go source files.
 When DIR is specified it checks DIR's project, otherwise
@@ -3271,7 +3277,7 @@ a manual COMMAND-TYPE command is created with
                                   :compile "dotnet build"
                                   :run "dotnet run"
                                   :test "dotnet test")
-(projectile-register-project-type 'dotnet-sln '("src")
+(projectile-register-project-type 'dotnet-sln #'projectile-dotnet-sln-project-p
                                   :project-file "?*.sln"
                                   :compile "dotnet build"
                                   :run "dotnet run"
diff --git a/test/projectile-test.el b/test/projectile-test.el
index 1ae331d6..472fb3a9 100644
--- a/test/projectile-test.el
+++ b/test/projectile-test.el
@@ -1347,11 +1347,11 @@ Just delegates OPERATION and ARGS for all operations except for`shell-command`'.
       (let ((projectile-indexing-method 'native))
         (spy-on 'projectile-project-root :and-return-value (file-truename (expand-file-name "project/")))
         (expect (projectile-detect-project-type) :to-equal 'emacs-eldev)))))
-  (it "detects project-type for projects with src dir and no other marker"
+  (it "detects project-type for dotnet sln projects"
     (projectile-test-with-sandbox
      (projectile-test-with-files
       ("project/"
-       "project/src/")
+       "project/Project.sln")
       (let ((projectile-indexing-method 'native))
         (spy-on 'projectile-project-root :and-return-value (file-truename (expand-file-name "project/")))
         (expect (projectile-detect-project-type) :to-equal 'dotnet-sln)))))