diff --git a/qbs/imports/PythonProbe.qbs b/qbs/imports/PythonProbe.qbs
index 52eae7fc..93b4270c 100644
--- a/qbs/imports/PythonProbe.qbs
+++ b/qbs/imports/PythonProbe.qbs
@@ -7,7 +7,6 @@ import qbs.Utilities
 Probe {
     id: pythonDllProbe
 
-    property string pythonDir: pythonInstallDir // Input
     property string buildVariant: qbs.buildVariant // Input
     property string minVersion: "3.5" // Input
     property string fileNamePrefix // Output
@@ -17,18 +16,9 @@ Probe {
             console.warn(msg + " The Python plugin will not be available.");
         }
 
-        if (!pythonDir) {
-            printWarning("PYTHONHOME not set.");
-            return;
-        }
-        if (!File.exists(pythonDir)) {
-            printWarning("The provided Python installation directory '" + pythonDir
-                         + "' does not exist.");
-            return;
-        }
         var p = new Process();
         try {
-            var pythonFilePath = FileInfo.joinPaths(pythonDir, "python.exe");
+            var pythonFilePath = "python";
             p.exec(pythonFilePath, ["--version"], true);
             var output = p.readStdOut().trim();
             var magicPrefix = "Python ";
@@ -45,9 +35,7 @@ Probe {
                 return;
             }
             if (Utilities.versionCompare(versionNumberString, minVersion) < 0) {
-                printWarning("The Python installation at '" + pythonDir
-                             + "' has version " + versionNumberString + ", but " + minVersion + " or higher "
-                             + "is required.");
+                printWarning("The Python installation has version " + versionNumberString + ", but " + minVersion + " or higher " + "is required.");
                 return;
             }
             found = true;
diff --git a/src/plugins/python/python.qbs b/src/plugins/python/python.qbs
index f1c959d3..8c43af9c 100644
--- a/src/plugins/python/python.qbs
+++ b/src/plugins/python/python.qbs
@@ -28,7 +28,6 @@ TiledPlugin {
 
     PythonProbe {
         id: pythonDllProbe
-        pythonDir: Environment.getEnv("PYTHONHOME")
         minVersion: "3.8"
     }