diff --git a/711.patch b/711.patch
new file mode 100644
index 0000000..353b832
--- /dev/null
+++ b/711.patch
@@ -0,0 +1,59 @@
+--- protobuf-c-1.5.0/protoc-c/c_file.cc	2024-10-21 20:22:31.574369622 +0200
++++ protobuf-c-1.5.0/protoc-c/c_file.cc	2024-10-21 20:22:43.064450125 +0200
+@@ -117,14 +117,7 @@
+ void FileGenerator::GenerateHeader(io::Printer* printer) {
+   std::string filename_identifier = FilenameIdentifier(file_->name());
+ 
+-  int min_header_version = 1000000;
+-#if GOOGLE_PROTOBUF_VERSION >= 4023000
+-  if (FileDescriptorLegacy(file_).syntax() == FileDescriptorLegacy::SYNTAX_PROTO3) {
+-#else
+-  if (file_->syntax() == FileDescriptor::SYNTAX_PROTO3) {
+-#endif
+-    min_header_version = 1003000;
+-  }
++  const int min_header_version = 1003000;
+ 
+   // Generate top of header.
+   printer->Print(
+--- protobuf-c-1.5.0/protoc-c/c_helpers.h	2024-10-21 20:22:31.574369622 +0200
++++ protobuf-c-1.5.0/protoc-c/c_helpers.h	2024-10-21 20:22:43.064450125 +0200
+@@ -70,10 +70,6 @@
+ #include <protobuf-c/protobuf-c.pb.h>
+ #include <google/protobuf/io/printer.h>
+ 
+-#if GOOGLE_PROTOBUF_VERSION >= 4023000
+-# include <google/protobuf/descriptor_legacy.h>
+-#endif
+-
+ namespace google {
+ namespace protobuf {
+ namespace compiler {
+@@ -173,13 +169,21 @@
+ int compare_name_indices_by_name(const void*, const void*);
+ 
+ // Return the syntax version of the file containing the field.
+-// This wrapper is needed to be able to compile against protobuf2.
+ inline int FieldSyntax(const FieldDescriptor* field) {
+-#if GOOGLE_PROTOBUF_VERSION >= 4023000
+-  return FileDescriptorLegacy(field->file()).syntax() == FileDescriptorLegacy::SYNTAX_PROTO3 ? 3 : 2;
+-#else
+-  return field->file()->syntax() == FileDescriptor::SYNTAX_PROTO3 ? 3 : 2;
+-#endif
++  auto proto = FileDescriptorProto();
++  field->file()->CopyTo(&proto);
++
++  if (proto.has_syntax()) {
++    auto syntax = proto.syntax();
++    assert(syntax == "proto2" || syntax == "proto3");
++    if (syntax == "proto2") {
++      return 2;
++    } else if (syntax == "proto3") {
++      return 3;
++    }
++  }
++
++  return 2;
+ }
+ 
+ // Work around changes in protobuf >= 22.x without breaking compilation against
diff --git a/protobuf-c.changes b/protobuf-c.changes
index f037c72..a1c5b66 100644
--- a/protobuf-c.changes
+++ b/protobuf-c.changes
@@ -1,3 +1,20 @@
+-------------------------------------------------------------------
+Tue Oct 22 08:48:51 UTC 2024 - Fridrich Strba <fstrba@suse.com>
+
+- Modified patch:
+  * 711.patch
+    + Drop a hunk that was creating problems when the protoc-c
+      was called directly and not just as a plugin to protoc
+
+-------------------------------------------------------------------
+Mon Oct 21 18:20:27 UTC 2024 - Fridrich Strba <fstrba@suse.com>
+
+- Added patch:
+  * 711.patch
+    + Backport the changes from the pull request #711
+      https://github.com/protobuf-c/protobuf-c/pull/711 fixing
+      build with protobuf 26.0+
+
 -------------------------------------------------------------------
 Mon Aug 12 21:14:32 UTC 2024 - Andreas Stieger <andreas.stieger@gmx.de>
 
diff --git a/protobuf-c.spec b/protobuf-c.spec
index 628a46c..adfcb77 100644
--- a/protobuf-c.spec
+++ b/protobuf-c.spec
@@ -27,6 +27,7 @@ License:        BSD-3-Clause
 Group:          Development/Tools/Other
 URL:            https://github.com/protobuf-c/protobuf-c
 Source:         https://github.com/protobuf-c/protobuf-c/releases/download/v%version/%name-%version.tar.gz
+Patch0:         711.patch
 BuildRequires:  autoconf
 BuildRequires:  automake
 BuildRequires:  c++_compiler