diff --git a/llvm/bindings/ocaml/llvm/llvm_ocaml.c b/llvm/bindings/ocaml/llvm/llvm_ocaml.c
--- a/llvm/bindings/ocaml/llvm/llvm_ocaml.c
+++ b/llvm/bindings/ocaml/llvm/llvm_ocaml.c
@@ -571,7 +571,7 @@
 }
 
 /* llcontext -> lltype */
-LLVMTypeRef llvm_pointer_type(LLVMContextRef C, value AddressSpace) {
+LLVMTypeRef llvm_pointer_type(LLVMContextRef C) {
   return LLVMPointerTypeInContext(C, 0);
 }