diff --git a/elfio/elf_types.hpp b/elfio/elf_types.hpp
index 63d025a..7ea1c5c 100644
--- a/elfio/elf_types.hpp
+++ b/elfio/elf_types.hpp
@@ -314,6 +314,10 @@ typedef uint64_t Elf64_Off;
 #define EM_CEVA          245 // CEVA Processor Architecture Family
 #define EM_CEVA_X2       246 // CEVA X2 Processor Family
 #define EM_BPF           247 // Linux BPF – in-kernel virtual machine
+#define EM_GRAPHCORE_IPU 248 // Graphcore Intelligent Processing Unit
+#define EM_IMG1          249 // Imagination Technologies
+#define EM_NFP           250 // Netronome Flow Processor (P)
+#define EM_CSKY          252 // C-SKY processor family
 
 // File version
 #define EV_NONE    0
diff --git a/elfio/elfio_dynamic.hpp b/elfio/elfio_dynamic.hpp
index 42f2680..3d35381 100644
--- a/elfio/elfio_dynamic.hpp
+++ b/elfio/elfio_dynamic.hpp
@@ -249,7 +249,7 @@ class dynamic_section_accessor_template
     S*           dynamic_section;
 };
 
-using dynamic_section_accessor = dynamic_section_accessor_template<section>;
+using dynamic_section_accessor       = dynamic_section_accessor_template<section>;
 using const_dynamic_section_accessor = dynamic_section_accessor_template<const section>;
 
 } // namespace ELFIO
diff --git a/elfio/elfio_note.hpp b/elfio/elfio_note.hpp
index 06b2817..34b1de3 100644
--- a/elfio/elfio_note.hpp
+++ b/elfio/elfio_note.hpp
@@ -164,7 +164,7 @@ class note_section_accessor_template
     std::vector<Elf_Xword> note_start_positions;
 };
 
-using note_section_accessor = note_section_accessor_template<section>;
+using note_section_accessor       = note_section_accessor_template<section>;
 using const_note_section_accessor = note_section_accessor_template<const section>;
 
 } // namespace ELFIO
diff --git a/elfio/elfio_relocation.hpp b/elfio/elfio_relocation.hpp
index 238598e..2d2b3ee 100644
--- a/elfio/elfio_relocation.hpp
+++ b/elfio/elfio_relocation.hpp
@@ -365,7 +365,7 @@ class relocation_section_accessor_template
     S*           relocation_section;
 };
 
-using relocation_section_accessor = relocation_section_accessor_template<section>;
+using relocation_section_accessor       = relocation_section_accessor_template<section>;
 using const_relocation_section_accessor = relocation_section_accessor_template<const section>;
 
 } // namespace ELFIO
diff --git a/elfio/elfio_strings.hpp b/elfio/elfio_strings.hpp
index 552f000..702d82f 100644
--- a/elfio/elfio_strings.hpp
+++ b/elfio/elfio_strings.hpp
@@ -92,7 +92,7 @@ class string_section_accessor_template
     S* string_section;
 };
 
-using string_section_accessor = string_section_accessor_template<section>;
+using string_section_accessor       = string_section_accessor_template<section>;
 using const_string_section_accessor = string_section_accessor_template<const section>;
 
 } // namespace ELFIO