diff --git a/integer.h b/integer.h
index 8a8a0082..6aea077a 100644
--- a/integer.h
+++ b/integer.h
@@ -660,6 +660,7 @@ public:
/// modulo the Integer n. If no Integer exists then Integer 0 is returned.
/// \sa a_times_b_mod_c() and a_exp_b_mod_c()
Integer InverseMod(const Integer &n) const;
+
/// \brief Calculate multiplicative inverse
/// \param n the modulus
/// \returns a word *this % n.
diff --git a/stdcpp.h b/stdcpp.h
index 9eac8835..fbea8389 100644
--- a/stdcpp.h
+++ b/stdcpp.h
@@ -52,6 +52,7 @@ namespace std {
#include
#include
#include
+#include
#include
#include