diff --git a/FWCore/Framework/interface/GenericProduct.h b/FWCore/Framework/interface/GenericProduct.h
index c461c77675c..77eb021dd6a 100644
--- a/FWCore/Framework/interface/GenericProduct.h
+++ b/FWCore/Framework/interface/GenericProduct.h
@@ -25,7 +25,7 @@ namespace edm {
 
   // specialise Event::putImpl for GenericProduct
   template <>
-  OrphanHandle<GenericProduct> Event::putImpl(EDPutToken::value_type index, std::unique_ptr<GenericProduct> product) {
+  inline OrphanHandle<GenericProduct> Event::putImpl(EDPutToken::value_type index, std::unique_ptr<GenericProduct> product) {
     /* TODO implement for ObjectWithDict
     // The following will call post_insert if T has such a function,
     // and do nothing if T has no such function.
@@ -54,7 +54,7 @@ namespace edm {
 
   // specialise Event::put for GenericProduct
   template <>
-  OrphanHandle<GenericProduct> Event::put(EDPutToken token, std::unique_ptr<GenericProduct> product) {
+  inline OrphanHandle<GenericProduct> Event::put(EDPutToken token, std::unique_ptr<GenericProduct> product) {
     if (UNLIKELY(product.get() == nullptr)) {  // null pointer is illegal
       TypeID typeID(typeid(GenericProduct));
       principal_get_adapter_detail::throwOnPutOfNullProduct("Event", typeID, provRecorder_.productInstanceLabel(token));