diff --git a/compiler/src/jlang/util/Constants.java b/compiler/src/jlang/util/Constants.java
index 38566f8e..e706fd58 100644
--- a/compiler/src/jlang/util/Constants.java
+++ b/compiler/src/jlang/util/Constants.java
@@ -17,7 +17,7 @@ public class Constants {
 
     public static final String PRIMITIVE_CLASS_OBJECT_SUFFIX = "ClassObject";
 
-    public static final String CALLOC = "GC_malloc";
+    public static final String CALLOC = "__GC_malloc";
     public static final String ENTRY_TRAMPOLINE = "Java_jlang_runtime_MainWrapper_main";
     public static final int LLVM_ADDR_SPACE = 0;