1 files changed, 1 insertions, 1 deletions
diff --git a/src/trans/codegen_c.cpp b/src/trans/codegen_c.cpp
index 08cf3ac7..a1440422 100644
--- a/src/trans/codegen_c.cpp
+++ b/src/trans/codegen_c.cpp
@@ -2810,7 +2810,7 @@ namespace {
                     case ::HIR::CoreType::I64:
                     case ::HIR::CoreType::I128:
                     case ::HIR::CoreType::Isize:
-                        m_of << "ull";
+                        m_of << "ll";
                     default:
                         break;
                     }