diff --git a/std/n8std/Env.cc b/std/n8std/Env.cc
index 93a9bd5..927f5fd 100644
--- a/std/n8std/Env.cc
+++ b/std/n8std/Env.cc
@@ -16,7 +16,7 @@
  * along with N8. If not, see <https://www.gnu.org/licenses/>.
  */
 
-#include "n8std/IO.hpp"
+#include "n8std/Env.hpp"
 
 #include <n8/ast/TerminativeSignal.hpp>