diff --git a/clang/lib/AST/ByteCode/Program.cpp b/clang/lib/AST/ByteCode/Program.cpp
index c468303efea7e..d96934071cb60 100644
--- a/clang/lib/AST/ByteCode/Program.cpp
+++ b/clang/lib/AST/ByteCode/Program.cpp
@@ -27,7 +27,7 @@ unsigned Program::getOrCreateNativePointer(const void *Ptr) {
   return It->second;
 }
 
-const void *Program::getNativePointer(unsigned Idx) {
+const void *Program::getNativePointer(unsigned Idx) const {
   return NativePointers[Idx];
 }
 
diff --git a/clang/lib/AST/ByteCode/Program.h b/clang/lib/AST/ByteCode/Program.h
index cc9127dc77860..c8795504391fa 100644
--- a/clang/lib/AST/ByteCode/Program.h
+++ b/clang/lib/AST/ByteCode/Program.h
@@ -58,7 +58,7 @@ class Program final {
   unsigned getOrCreateNativePointer(const void *Ptr);
 
   /// Returns the value of a marshalled native pointer.
-  const void *getNativePointer(unsigned Idx);
+  const void *getNativePointer(unsigned Idx) const;
 
   /// Emits a string literal among global data.
   unsigned createGlobalString(const StringLiteral *S,