diff --git a/include/DiscreteAngle.h b/include/DiscreteAngle.h
index d5e0c95..17c4616 100644
--- a/include/DiscreteAngle.h
+++ b/include/DiscreteAngle.h
@@ -7,6 +7,8 @@
 class DiscreteAngle16 : public Range16 {
 public:
   DiscreteAngle16(float angle);
+
+  inline DiscreteAngle16 &operator-();
 };
 
 #endif
\ No newline at end of file
diff --git a/src/DiscreteAngle.cpp b/src/DiscreteAngle.cpp
index 7ab700f..9544da1 100644
--- a/src/DiscreteAngle.cpp
+++ b/src/DiscreteAngle.cpp
@@ -22,3 +22,5 @@ DiscreteAngle16::DiscreteAngle16(float angle) : Range16() {
   // This means that range value 0 is not used
   this->range = (unsigned short)((angle + 180.0F) * 65535.0F);
 }
+
+DiscreteAngle16 &DiscreteAngle16::operator-() { -this->range; }
\ No newline at end of file