diff --git a/src/problem.rs b/src/problem.rs
index 764e899..e74d7a4 100644
--- a/src/problem.rs
+++ b/src/problem.rs
@@ -107,7 +107,7 @@ impl Problem
 				continue;
 			}
 
-			for (section_key, statements) in self.statements.borrow().iter()
+			for (_, statements) in self.statements.borrow().iter()
 			{
 				for statement in statements
 				{