diff --git a/src/env_base.cpp b/src/env_base.cpp
index 1cb8e00..1c45d66 100644
--- a/src/env_base.cpp
+++ b/src/env_base.cpp
@@ -18,7 +18,7 @@
 #include "env_base.hpp"
 
 namespace duck {
-	bool EnvBase::empty() const noexcept {
-		return 0 == this->size();
-	}
+bool EnvBase::empty() const noexcept {
+	return 0 == this->size();
+}
 } //namespace duck