diff --git a/hpb/backend/upb/BUILD b/hpb/backend/upb/BUILD
index c5b1ce5a0c..e4962b76f4 100644
--- a/hpb/backend/upb/BUILD
+++ b/hpb/backend/upb/BUILD
@@ -35,9 +35,11 @@ cc_library(
     deps = [
         "//hpb:ptr",
         "//hpb/internal",
+        "//upb:base",
         "//upb:mem",
         "//upb:message",
         "//upb:mini_table",
+        "@com_google_absl//absl/strings:string_view",
     ],
 )
 
diff --git a/hpb/backend/upb/interop.h b/hpb/backend/upb/interop.h
index 0ef7b554c8..fee89416a9 100644
--- a/hpb/backend/upb/interop.h
+++ b/hpb/backend/upb/interop.h
@@ -10,8 +10,10 @@
 
 // The sole public header in hpb/backend/upb
 
+#include "absl/strings/string_view.h"
 #include "google/protobuf/hpb/internal/internal.h"
 #include "google/protobuf/hpb/ptr.h"
+#include "upb/base/string_view.h"
 #include "upb/mem/arena.h"
 #include "upb/message/message.h"
 #include "upb/mini_table/message.h"
@@ -93,6 +95,10 @@ typename T::Proxy MakeHandle(upb_Message* msg, upb_Arena* arena) {
   return typename T::Proxy(msg, arena);
 }
 
+inline absl::string_view FromUpbStringView(upb_StringView str) {
+  return absl::string_view(str.data, str.size);
+}
+
 }  // namespace hpb::interop::upb
 
 #endif  // GOOGLE_PROTOBUF_HPB_BACKEND_UPB_INTEROP_H__
diff --git a/hpb/hpb.h b/hpb/hpb.h
index 66ed1b6dd7..8186142bf7 100644
--- a/hpb/hpb.h
+++ b/hpb/hpb.h
@@ -37,11 +37,6 @@
 namespace hpb {
 class ExtensionRegistry;
 
-// TODO: b/354766950 - Move upb-specific chunks out of hpb header
-inline absl::string_view UpbStrToStringView(upb_StringView str) {
-  return absl::string_view(str.data, str.size);
-}
-
 // TODO: update bzl and move to upb runtime / protos.cc.
 inline upb_StringView UpbStrFromStringView(absl::string_view str,
                                            upb_Arena* arena) {
diff --git a/hpb_generator/gen_accessors.cc b/hpb_generator/gen_accessors.cc
index a66870cd30..b201a0bf28 100644
--- a/hpb_generator/gen_accessors.cc
+++ b/hpb_generator/gen_accessors.cc
@@ -225,7 +225,7 @@ void WriteAccessorsInSource(const protobuf::Descriptor* desc, Output& output) {
         output(
             R"cc(
               $1 $0::$2() const {
-                return ::hpb::UpbStrToStringView($3_$4(msg_));
+                return hpb::interop::upb::FromUpbStringView($3_$4(msg_));
               }
             )cc",
             class_name, CppConstType(field), resolved_field_name,
diff --git a/hpb_generator/gen_repeated_fields.cc b/hpb_generator/gen_repeated_fields.cc
index 6e4e02c3c9..0af6b54af6 100644
--- a/hpb_generator/gen_repeated_fields.cc
+++ b/hpb_generator/gen_repeated_fields.cc
@@ -204,7 +204,7 @@ void WriteRepeatedStringAccessor(const protobuf::Descriptor* message,
           size_t len;
           auto* ptr = $3_mutable_$4(msg_, &len);
           assert(index < len);
-          return ::hpb::UpbStrToStringView(*(ptr + index));
+          return hpb::interop::upb::FromUpbStringView(*(ptr + index));
         }
       )cc",
       class_name, CppConstType(field), resolved_field_name,