diff --git a/tests/auto/utils/qtcprocess/processtestapp/processtestapp.cpp b/tests/auto/utils/qtcprocess/processtestapp/processtestapp.cpp
index a37a4f199f3..98ae43f922a 100644
--- a/tests/auto/utils/qtcprocess/processtestapp/processtestapp.cpp
+++ b/tests/auto/utils/qtcprocess/processtestapp/processtestapp.cpp
@@ -77,7 +77,7 @@ SubProcessConfig::SubProcessConfig(const char *envVar, const QString &envVal)
 {
 }
 
-void SubProcessConfig::setupSubProcess(QtcProcess *subProcess)
+void SubProcessConfig::setupSubProcess(QtcProcess *subProcess) const
 {
     subProcess->setEnvironment(m_environment);
     const FilePath filePath = FilePath::fromString(s_pathToProcessTestApp
@@ -85,14 +85,13 @@ void SubProcessConfig::setupSubProcess(QtcProcess *subProcess)
     subProcess->setCommand(CommandLine(filePath, {}));
 }
 
-void SubProcessConfig::setupSubProcess(QProcess *subProcess)
+void SubProcessConfig::setupSubProcess(QProcess *subProcess) const
 {
     subProcess->setProcessEnvironment(m_environment.toProcessEnvironment());
     subProcess->setProgram(FilePath::fromString(s_pathToProcessTestApp
                            + QLatin1String("/processtestapp")).withExecutableSuffix().toString());
 }
 
-
 static void doCrash()
 {
     qFatal("The application has crashed purposefully!");
diff --git a/tests/auto/utils/qtcprocess/processtestapp/processtestapp.h b/tests/auto/utils/qtcprocess/processtestapp/processtestapp.h
index 446fd0e3131..5deabdb4a1b 100644
--- a/tests/auto/utils/qtcprocess/processtestapp/processtestapp.h
+++ b/tests/auto/utils/qtcprocess/processtestapp/processtestapp.h
@@ -72,8 +72,8 @@ class SubProcessConfig
 {
 public:
     SubProcessConfig(const char *envVar, const QString &envVal);
-    void setupSubProcess(Utils::QtcProcess *subProcess);
-    void setupSubProcess(QProcess *subProcess);
+    void setupSubProcess(Utils::QtcProcess *subProcess) const;
+    void setupSubProcess(QProcess *subProcess) const;
 
     static void setPathToProcessTestApp(const QString &path);