diff --git a/clang/lib/AST/ASTContext.cpp b/clang/lib/AST/ASTContext.cpp
index 7f73531..d7778a71 100644
--- a/clang/lib/AST/ASTContext.cpp
+++ b/clang/lib/AST/ASTContext.cpp
@@ -908,7 +908,7 @@
   Parents.reset();
 }
 
-void ASTContext::AddDeallocation(void (*Callback)(void*), void *Data) {
+void ASTContext::AddDeallocation(void (*Callback)(void *), void *Data) const {
   Deallocations.push_back({Callback, Data});
 }