diff --git a/src/compiler_llvm/ir_builder.cc b/src/compiler_llvm/ir_builder.cc
index 998ec04..8b2f0f7 100644
--- a/src/compiler_llvm/ir_builder.cc
+++ b/src/compiler_llvm/ir_builder.cc
@@ -82,10 +82,11 @@
 
   case kObject:
     return getJObjectTy();
-  }
 
-  LOG(FATAL) << "Unknown java type: " << jty;
-  return NULL;
+  default:
+    LOG(FATAL) << "Unknown java type: " << jty;
+    return NULL;
+  }
 }
 
 
@@ -142,10 +143,11 @@
 
   case kObject:
     return getJObjectTy();
-  }
 
-  LOG(FATAL) << "Unknown java type: " << jty;
-  return NULL;
+  default:
+    LOG(FATAL) << "Unknown java type: " << jty;
+    return NULL;
+  }
 }