diff --git a/libgrust/libproc_macro/literal.cc b/libgrust/libproc_macro/literal.cc
index aad7090d7ab3..221c57a0da5e 100644
--- a/libgrust/libproc_macro/literal.cc
+++ b/libgrust/libproc_macro/literal.cc
@@ -25,10 +25,9 @@
 #include <cstdlib>
 
 namespace Literal {
-extern "C" {
 
 void
-Literal__drop (Literal *lit)
+Literal::drop (Literal *lit)
 {
   switch (lit->tag)
     {
@@ -51,6 +50,14 @@ Literal__drop (Literal *lit)
     }
 }
 
+extern "C" {
+
+void
+Literal__drop (Literal *lit)
+{
+  Literal::drop (lit);
+}
+
 Literal
 Literal__string (const unsigned char *str, std::uint64_t len)
 {
diff --git a/libgrust/libproc_macro/literal.h b/libgrust/libproc_macro/literal.h
index b78942221053..2c61231e8b25 100644
--- a/libgrust/libproc_macro/literal.h
+++ b/libgrust/libproc_macro/literal.h
@@ -188,6 +188,8 @@ public:
 
   static Literal make_unsigned (UnsignedSuffixPayload p);
   static Literal make_signed (SignedSuffixPayload p);
+
+  static void drop (Literal *lit);
 };
 
 extern "C" {