diff --git a/cli/cmdlineparser.cpp b/cli/cmdlineparser.cpp
index ac6313611..1cc7188a6 100644
--- a/cli/cmdlineparser.cpp
+++ b/cli/cmdlineparser.cpp
@@ -660,9 +660,6 @@ void CmdLineParser::PrintHelp()
               "                          * missingInclude\n"
               "                                  Warn if there are missing includes.\n"
               "                                  For detailed information use --check-config\n"
-              "                          * posix\n"
-              "                                  Enable checks specific for POSIX-compiliant\n"
-              "                                  code.\n"
               "                         Several ids can be given if you separate them with\n"
               "                         commas.\n"
               "    --error-exitcode=<n> If errors are found, integer [n] is returned instead\n"
diff --git a/lib/checknonreentrantfunctions.cpp b/lib/checknonreentrantfunctions.cpp
index 77f65d6a4..67d729ef9 100644
--- a/lib/checknonreentrantfunctions.cpp
+++ b/lib/checknonreentrantfunctions.cpp
@@ -33,7 +33,7 @@ CheckNonReentrantFunctions instance;
 
 void CheckNonReentrantFunctions::nonReentrantFunctions()
 {
-    if (!_settings->isEnabled("posix") || !_settings->isEnabled("style"))
+    if (!_settings->posix || !_settings->isEnabled("style"))
         return;
 
     // Don't check C# and Java code
diff --git a/lib/checkobsoletefunctions.cpp b/lib/checkobsoletefunctions.cpp
index 0059cc4f0..0aae98111 100644
--- a/lib/checkobsoletefunctions.cpp
+++ b/lib/checkobsoletefunctions.cpp
@@ -40,8 +40,6 @@ void CheckObsoleteFunctions::obsoleteFunctions()
     if (_tokenizer->isJavaOrCSharp())
         return;
 
-    const bool checkPosix = _settings->isEnabled("posix");
-
     for (const Token *tok = _tokenizer->tokens(); tok; tok = tok->next())
     {
         if (tok->isName() && tok->varId()==0 && tok->strAt(1) == "(" && !Token::Match(tok->previous(), ".|::|:|,"))
@@ -58,7 +56,7 @@ void CheckObsoleteFunctions::obsoleteFunctions()
                 reportError(tok->tokAt(1), Severity::information, "obsoleteFunctions"+it->first, it->second);
                 break;
             }
-            else if (checkPosix)
+            else if (_settings->posix)
             {
                 it = _obsoletePosixFunctions.find(tok->str());
                 if (it != _obsoletePosixFunctions.end())
diff --git a/lib/settings.cpp b/lib/settings.cpp
index 59bb7065b..43c630c07 100644
--- a/lib/settings.cpp
+++ b/lib/settings.cpp
@@ -48,6 +48,7 @@ Settings::Settings()
     reportProgress = false;
     ifcfg = false;
     checkConfiguration = false;
+    posix = false;
 }
 
 std::string Settings::Suppressions::parseFile(std::istream &istr)
@@ -393,7 +394,6 @@ std::string Settings::addEnabled(const std::string &str)
     id.insert("missingInclude");
     id.insert("unusedFunction");
     id.insert("information");
-    id.insert("posix");
 
     if (str == "all")
     {
diff --git a/lib/settings.h b/lib/settings.h
index e1a51d209..80752171f 100644
--- a/lib/settings.h
+++ b/lib/settings.h
@@ -300,6 +300,9 @@ public:
 
     /** Is the 'configuration checking' wanted? */
     bool checkConfiguration;
+
+    /** Posix checks */
+    bool posix;
 };
 
 /// @}
diff --git a/test/testcmdlineparser.cpp b/test/testcmdlineparser.cpp
index 678f7cfa4..341a3e8b6 100644
--- a/test/testcmdlineparser.cpp
+++ b/test/testcmdlineparser.cpp
@@ -62,7 +62,6 @@ private:
         TEST_CASE(enabledStyle);
         TEST_CASE(enabledUnusedFunction);
         TEST_CASE(enabledMissingInclude);
-        TEST_CASE(enablePosix);
         TEST_CASE(errorExitcode);
         TEST_CASE(errorExitcodeMissing);
         TEST_CASE(errorExitcodeStr);
@@ -425,16 +424,6 @@ private:
         ASSERT(settings.isEnabled("missingInclude"));
     }
 
-    void enablePosix()
-    {
-        REDIRECT;
-        const char *argv[] = {"cppcheck", "--enable=posix", "file.cpp"};
-        Settings settings;
-        CmdLineParser parser(&settings);
-        ASSERT(parser.ParseFromArgs(3, argv));
-        ASSERT(settings.isEnabled("posix"));
-    }
-
     void errorExitcode()
     {
         REDIRECT;
diff --git a/test/testnonreentrantfunctions.cpp b/test/testnonreentrantfunctions.cpp
index c86b5e33f..c155e7a59 100644
--- a/test/testnonreentrantfunctions.cpp
+++ b/test/testnonreentrantfunctions.cpp
@@ -38,15 +38,13 @@ private:
         TEST_CASE(test_crypt);
     }
 
-
     void check(const char code[])
     {
         // Clear the error buffer..
         errout.str("");
 
         Settings settings;
-        settings.addEnabled("posix");
-        settings.inconclusive = true;
+        settings.posix = true;
         settings.addEnabled("style");
 
         // Tokenize..
diff --git a/test/testobsoletefunctions.cpp b/test/testobsoletefunctions.cpp
index abaa53816..6402870ab 100644
--- a/test/testobsoletefunctions.cpp
+++ b/test/testobsoletefunctions.cpp
@@ -50,7 +50,6 @@ private:
         TEST_CASE(testgets);
     }
 
-
     void check(const char code[])
     {
         // Clear the error buffer..
@@ -58,7 +57,7 @@ private:
 
         Settings settings;
         settings.addEnabled("style");
-        settings.addEnabled("posix");
+        settings.posix = true;
 
         // Tokenize..
         Tokenizer tokenizer(&settings, this);