diff --git a/src/operand.cpp b/src/operand.cpp
index 127ae8e..821b533 100644
--- a/src/operand.cpp
+++ b/src/operand.cpp
@@ -9,7 +9,7 @@
 
 namespace Sirit {
 
-Operand::Operand() {}
+Operand::Operand() = default;
 
 Operand::~Operand() = default;