diff --git a/llvm/_core.cpp b/llvm/_core.cpp
index 77ded24..b8f86e3 100644
--- a/llvm/_core.cpp
+++ b/llvm/_core.cpp
@@ -485,6 +485,7 @@ _wrap_list2obj(LLVMConstVector, LLVMValueRef, LLVMValueRef)
 
 /* Constant expressions */
 
+_wrap_obj2obj(LLVMGetConstOpcode, LLVMValueRef, int)
 _wrap_obj2obj(LLVMSizeOf, LLVMTypeRef, LLVMValueRef)
 _wrap_obj2obj(LLVMConstNeg, LLVMValueRef, LLVMValueRef)
 _wrap_obj2obj(LLVMConstNot, LLVMValueRef, LLVMValueRef)
@@ -1579,6 +1580,7 @@ static PyMethodDef core_methods[] = {
     _method( LLVMConstVector )
 
     /* Constant expressions */
+    _method( LLVMGetConstOpcode )
     _method( LLVMSizeOf )
     _method( LLVMConstNeg )
     _method( LLVMConstNot )
diff --git a/llvm/core.py b/llvm/core.py
index a9c90c8..8a75d42 100644
--- a/llvm/core.py
+++ b/llvm/core.py
@@ -1172,7 +1172,9 @@ class Constant(User):
 
 
 class ConstantExpr(Constant):
-    pass
+    @property
+    def opcode(self):
+        return _core.LLVMGetConstOpcode(self.ptr)
 
 
 class ConstantAggregateZero(Constant):