diff --git a/tempest/Range.hpp b/tempest/Range.hpp
index 7c08da3..e7c51b7 100644
--- a/tempest/Range.hpp
+++ b/tempest/Range.hpp
@@ -2,5 +2,6 @@
 #define TEMPEST_RANGE_HPP
 
 #include "tempest/range/CRange.hpp"
+#include "tempest/range/CiRange.hpp"
 
 #endif
diff --git a/tempest/range/CiRange.hpp b/tempest/range/CiRange.hpp
new file mode 100644
index 0000000..233c88c
--- /dev/null
+++ b/tempest/range/CiRange.hpp
@@ -0,0 +1,13 @@
+#ifndef TEMPEST_RANGE_C_IRANGE_HPP
+#define TEMPEST_RANGE_C_IRANGE_HPP
+
+#include <cstdint>
+
+class CiRange {
+    public:
+    // Member variables
+    int32_t l;
+    int32_t h;
+};
+
+#endif