diff --git a/src/libs/utils/processutils.cpp b/src/libs/utils/processutils.cpp
index 812ea63cc48..39624dab3dd 100644
--- a/src/libs/utils/processutils.cpp
+++ b/src/libs/utils/processutils.cpp
@@ -10,7 +10,9 @@
 #include <qt_windows.h>
 #else
 #include <errno.h>
+#include <signal.h>
 #include <stdio.h>
+#include <sys/types.h>
 #include <unistd.h>
 #endif
 
@@ -127,7 +129,7 @@ void ProcessHelper::interruptPid(qint64 pid)
 #ifdef Q_OS_WIN
     EnumWindows(sendInterruptMessageToAllWindowsOfProcess_enumWnd, pid);
 #else
-    Q_UNUSED(pid)
+    ::kill(pid, SIGINT);
 #endif
 }
 
diff --git a/src/libs/utils/qtcprocess.cpp b/src/libs/utils/qtcprocess.cpp
index e6dffa0e786..92e7be0ca6c 100644
--- a/src/libs/utils/qtcprocess.cpp
+++ b/src/libs/utils/qtcprocess.cpp
@@ -459,8 +459,7 @@ private:
             m_handle->kill();
             break;
         case ControlSignal::Interrupt:
-            if (m_setup.m_useCtrlCStub) // bypass launcher and interrupt directly
-                ProcessHelper::interruptPid(m_handle->processId());
+            ProcessHelper::interruptPid(m_handle->processId());
             break;
         case ControlSignal::KickOff:
             QTC_CHECK(false);