diff --git a/src/PyColor.cpp b/src/PyColor.cpp
index 75d5242..9e352af 100644
--- a/src/PyColor.cpp
+++ b/src/PyColor.cpp
@@ -92,9 +92,9 @@ Py_hash_t PyColor::hash(PyObject* obj)
     auto self = (PyColorObject*)obj;
     Py_hash_t value = 0;
     value += self->data.r;
-    value << 8; value += self->data.g; 
-    value << 8; value += self->data.b; 
-    value << 8; value += self->data.a;
+    value <<= 8; value += self->data.g; 
+    value <<= 8; value += self->data.b; 
+    value <<= 8; value += self->data.a;
 
     return value;
 }
diff --git a/src/PyVector.cpp b/src/PyVector.cpp
index 4315b30..391d141 100644
--- a/src/PyVector.cpp
+++ b/src/PyVector.cpp
@@ -160,7 +160,7 @@ Py_hash_t PyVector::hash(PyObject* obj)
     auto self = (PyVectorObject*)obj;
     Py_hash_t value = 0;
     value += self->data.x;
-    value << 8; value += self->data.y; 
+    value <<= 8; value += self->data.y; 
 
     return value;
 }