diff --git a/lib/cppcheck.cpp b/lib/cppcheck.cpp
index d4718dbba06..87d8808899f 100644
--- a/lib/cppcheck.cpp
+++ b/lib/cppcheck.cpp
@@ -60,12 +60,6 @@
 #include <utility>
 #include <vector>
 
-#ifndef _WIN32
-#include <unistd.h>
-#else
-#include <process.h>
-#endif
-
 #include "json.h"
 
 #include <simplecpp.h>
@@ -139,15 +133,6 @@ static std::vector<std::string> split(const std::string &str, const std::string
     return ret;
 }
 
-static int getPid()
-{
-#ifndef _WIN32
-    return getpid();
-#else
-    return _getpid();
-#endif
-}
-
 static std::string getDumpFileName(const Settings& settings, const std::string& filename)
 {
     if (!settings.dumpFile.empty())
@@ -157,7 +142,7 @@ static std::string getDumpFileName(const Settings& settings, const std::string&
     if (settings.dump)
         extension = ".dump";
     else
-        extension = "." + std::to_string(getPid()) + ".dump";
+        extension = "." + std::to_string(settings.pid) + ".dump";
 
     if (!settings.dump && !settings.buildDir.empty())
         return AnalyzerInformation::getAnalyzerInfoFile(settings.buildDir, filename, emptyString) + extension;
@@ -1409,7 +1394,7 @@ void CppCheck::executeAddons(const std::vector<std::string>& files, const std::s
     std::string fileList;
 
     if (files.size() >= 2 || endsWith(files[0], ".ctu-info")) {
-        fileList = Path::getPathFromFilename(files[0]) + FILELIST + std::to_string(getPid());
+        fileList = Path::getPathFromFilename(files[0]) + FILELIST + std::to_string(mSettings.pid);
         filesDeleter.addFile(fileList);
         std::ofstream fout(fileList);
         for (const std::string& f: files)
diff --git a/lib/settings.cpp b/lib/settings.cpp
index 1940a07ced3..c91abf5f7e5 100644
--- a/lib/settings.cpp
+++ b/lib/settings.cpp
@@ -29,6 +29,13 @@
 
 #include "json.h"
 
+#ifndef _WIN32
+#include <unistd.h> // for getpid()
+#else
+#include <process.h> // for getpid()
+#endif
+
+
 std::atomic<bool> Settings::mTerminated;
 
 const char Settings::SafeChecks::XmlRootName[] = "safe-checks";
@@ -37,12 +44,22 @@ const char Settings::SafeChecks::XmlExternalFunctions[] = "external-functions";
 const char Settings::SafeChecks::XmlInternalFunctions[] = "internal-functions";
 const char Settings::SafeChecks::XmlExternalVariables[] = "external-variables";
 
+static int getPid()
+{
+#ifndef _WIN32
+    return getpid();
+#else
+    return _getpid();
+#endif
+}
+
 Settings::Settings()
 {
     severity.setEnabled(Severity::error, true);
     certainty.setEnabled(Certainty::normal, true);
     setCheckLevel(Settings::CheckLevel::exhaustive);
     executor = defaultExecutor();
+    pid = getPid();
 }
 
 std::string Settings::loadCppcheckCfg(Settings& settings, Suppressions& suppressions)
diff --git a/lib/settings.h b/lib/settings.h
index 55ee9669310..3f0023493c1 100644
--- a/lib/settings.h
+++ b/lib/settings.h
@@ -263,6 +263,9 @@ class CPPCHECKLIB WARN_UNUSED Settings {
     /** @brief max number of sets of arguments to pass to subfuncions in valueflow */
     int performanceValueFlowMaxSubFunctionArgs = 256;
 
+    /** @brief pid of cppcheck. Intention is that this is set in the main process. */
+    int pid;
+
     /** @brief plist output (--plist-output=&lt;dir&gt;) */
     std::string plistOutput;