diff --git a/src/cam/options.cpp b/src/cam/options.cpp
index 83601270..f48bd1fc 100644
--- a/src/cam/options.cpp
+++ b/src/cam/options.cpp
@@ -12,6 +12,32 @@
 
 #include "options.h"
 
+template <typename T>
+bool OptionsBase<T>::valid() const
+{
+	return !values_.empty();
+}
+
+template <typename T>
+bool OptionsBase<T>::isSet(const T &opt) const
+{
+	return values_.find(opt) != values_.end();
+}
+
+template <typename T>
+const std::string &OptionsBase<T>::operator[](const T &opt) const
+{
+	return values_.find(opt)->second;
+}
+
+template <typename T>
+void OptionsBase<T>::clear()
+{
+	values_.clear();
+}
+
+template class OptionsBase<int>;
+
 void OptionsParser::addOption(int opt, const char *help, const char *name,
 			      OptionArgument argument, const char *argumentName)
 {
@@ -166,27 +192,3 @@ void OptionsParser::usage()
 		}
 	}
 }
-
-OptionsParser::Options::Options()
-{
-}
-
-bool OptionsParser::Options::valid() const
-{
-	return !values_.empty();
-}
-
-bool OptionsParser::Options::isSet(int opt) const
-{
-	return values_.find(opt) != values_.end();
-}
-
-const std::string &OptionsParser::Options::operator[](int opt) const
-{
-	return values_.find(opt)->second;
-}
-
-void OptionsParser::Options::clear()
-{
-	values_.clear();
-}
diff --git a/src/cam/options.h b/src/cam/options.h
index 6d1b12d2..2bf1f160 100644
--- a/src/cam/options.h
+++ b/src/cam/options.h
@@ -28,21 +28,25 @@ struct Option {
 	bool hasLongOption() const { return name != nullptr; }
 };
 
+template <typename T>
+class OptionsBase
+{
+public:
+	bool valid() const;
+	bool isSet(const T &opt) const;
+	const std::string &operator[](const T &opt) const;
+
+private:
+	friend class OptionsParser;
+	std::map<T, std::string> values_;
+	void clear();
+};
+
 class OptionsParser
 {
 public:
-	class Options {
-	public:
-		Options();
-
-		bool valid() const;
-		bool isSet(int opt) const;
-		const std::string &operator[](int opt) const;
-
-	private:
-		friend class OptionsParser;
-		std::map<int, std::string> values_;
-		void clear();
+	class Options : public OptionsBase<int>
+	{
 	};
 
 	void addOption(int opt, const char *help, const char *name = nullptr,