diff --git a/src/plugins/debugger/debuggerengine.h b/src/plugins/debugger/debuggerengine.h
index b5e8a3cba8d..6b264911cc4 100644
--- a/src/plugins/debugger/debuggerengine.h
+++ b/src/plugins/debugger/debuggerengine.h
@@ -125,9 +125,6 @@ public:
     // Used by Valgrind
     QStringList expectedSignals;
 
-    // For QNX debugging
-    bool useCtrlCStub = false;
-
     // Used by Android to avoid false positives on warnOnRelease
     bool skipExecutableValidation = false;
     bool useTargetAsync = false;
diff --git a/src/plugins/debugger/debuggerruncontrol.cpp b/src/plugins/debugger/debuggerruncontrol.cpp
index 5688ff191ad..2f980f7fdc4 100644
--- a/src/plugins/debugger/debuggerruncontrol.cpp
+++ b/src/plugins/debugger/debuggerruncontrol.cpp
@@ -276,11 +276,6 @@ void DebuggerRunTool::setSkipExecutableValidation(bool on)
     m_runParameters.skipExecutableValidation = on;
 }
 
-void DebuggerRunTool::setUseCtrlCStub(bool on)
-{
-    m_runParameters.useCtrlCStub = on;
-}
-
 void DebuggerRunTool::setBreakOnMain(bool on)
 {
     m_runParameters.breakOnMain = on;
diff --git a/src/plugins/debugger/debuggerruncontrol.h b/src/plugins/debugger/debuggerruncontrol.h
index 39fb7e9507f..bfd53299a1b 100644
--- a/src/plugins/debugger/debuggerruncontrol.h
+++ b/src/plugins/debugger/debuggerruncontrol.h
@@ -100,7 +100,6 @@ protected:
     void setRemoteChannel(const QUrl &url);
     void setUseTargetAsync(bool on);
     void setSkipExecutableValidation(bool on);
-    void setUseCtrlCStub(bool on);
 
     void setIosPlatform(const QString &platform);
     void setDeviceSymbolsRoot(const QString &deviceSymbolsRoot);
diff --git a/src/plugins/qnx/qnxdebugsupport.cpp b/src/plugins/qnx/qnxdebugsupport.cpp
index 27c26e269c0..322c3553071 100644
--- a/src/plugins/qnx/qnxdebugsupport.cpp
+++ b/src/plugins/qnx/qnxdebugsupport.cpp
@@ -126,7 +126,6 @@ public:
 
         setStartMode(AttachToRemoteServer);
         setCloseMode(KillAtClose);
-        setUseCtrlCStub(true);
         setSolibSearchPath(FileUtils::toFilePathList(searchPaths(k)));
         if (auto qtVersion = dynamic_cast<QnxQtVersion *>(QtSupport::QtKitAspect::qtVersion(k))) {
             setSysRoot(qtVersion->qnxTarget());
@@ -196,7 +195,6 @@ public:
     {
         setId("QnxAttachDebugSupport");
         setUsePortsGatherer(isCppDebugging(), isQmlDebugging());
-        setUseCtrlCStub(true);
 
         if (isCppDebugging()) {
             auto pdebugRunner = new PDebugRunner(runControl, portsGatherer());