diff --git a/application/argumentparser.h b/application/argumentparser.h
index 6a2f349..b9bb736 100644
--- a/application/argumentparser.h
+++ b/application/argumentparser.h
@@ -5,6 +5,7 @@
 
 #include <functional>
 #include <initializer_list>
+#include <limits>
 #include <vector>
 #ifdef DEBUG_BUILD
 #include <cassert>
@@ -200,6 +201,12 @@ public:
     void reset();
     void resetRecursively();
 
+    /*!
+     * \brief Denotes a variable number of values.
+     * \sa setRequiredValueCount()
+     */
+    static constexpr std::size_t varValueCount = std::numeric_limits<std::size_t>::max();
+
 private:
     const char *m_name;
     char m_abbreviation;
@@ -405,7 +412,8 @@ inline std::size_t Argument::requiredValueCount() const
  *        for this argument.
  *
  * The parser will expect that many values when parsing command line arguments.
- * A negative value indicates a variable number of arguments to be expected.
+ * Pass Argument::varValueCount for a variable number of arguments
+ * to be expected.
  *
  * \sa requiredValueCount()
  * \sa valueNames()
diff --git a/tests/testutils.cpp b/tests/testutils.cpp
index 52c3a0c..103d180 100644
--- a/tests/testutils.cpp
+++ b/tests/testutils.cpp
@@ -9,6 +9,7 @@
 #include <fstream>
 #include <initializer_list>
 #include <iostream>
+#include <limits>
 
 #ifdef PLATFORM_UNIX
 #include <poll.h>
@@ -67,7 +68,7 @@ TestApplication::TestApplication(int argc, char **argv)
         arg->setValueNames({ "path" });
         arg->setCombinable(true);
     }
-    m_unitsArg.setRequiredValueCount(-1);
+    m_unitsArg.setRequiredValueCount(Argument::varValueCount);
     m_unitsArg.setValueNames({ "unit1", "unit2", "unit3" });
     m_unitsArg.setCombinable(true);
     m_parser.setMainArguments({ &m_testFilesPathArg, &m_applicationPathArg, &m_workingDirArg, &m_unitsArg, &m_helpArg });