diff --git a/src/checker.cpp b/src/checker.cpp
index 1200af284..e5dda2aa7 100644
--- a/src/checker.cpp
+++ b/src/checker.cpp
@@ -1797,7 +1797,9 @@ gb_internal void add_type_and_value(CheckerContext *ctx, Ast *expr, AddressingMo
 		}
 
 		expr = unparen_expr(expr);
-		if(!expr) break;
+		if (expr == nullptr) {
+			break;
+		};
 	}
 	mutex_unlock(mutex);
 }