diff --git a/.clang-format b/.clang-format
index 2b8a92ebc8bf..00cb0d03e6c1 100644
--- a/.clang-format
+++ b/.clang-format
@@ -163,6 +163,7 @@ StatementMacros:
   - itkTemplateFloatingToIntegerMacro
   - itkPadStruct
   - itkLegacyMacro
+  - IPLSetMacroDeclaration
 TabWidth:        2
 UseTab:          Never
 ...
diff --git a/Modules/IO/IPL/include/itkIPLFileNameList.h b/Modules/IO/IPL/include/itkIPLFileNameList.h
index 53edc5133b9d..9bf84b661939 100644
--- a/Modules/IO/IPL/include/itkIPLFileNameList.h
+++ b/Modules/IO/IPL/include/itkIPLFileNameList.h
@@ -93,21 +93,14 @@ class IPLFileSortInfo
 
   virtual ~IPLFileSortInfo();
 
-  IPLSetMacroDeclaration(ImageFileName, std::string);
-  IPLGetMacroDeclaration(ImageFileName, std::string);
-  IPLSetMacroDeclaration(SliceLocation, float);
-  IPLGetMacroDeclaration(SliceLocation, float);
-  IPLSetMacroDeclaration(SliceOffset, int);
-  IPLGetMacroDeclaration(SliceOffset, int);
-  IPLSetMacroDeclaration(EchoNumber, int);
-  IPLGetMacroDeclaration(EchoNumber, int);
-  IPLSetMacroDeclaration(ImageNumber, int);
-  IPLGetMacroDeclaration(ImageNumber, int);
-  IPLSetMacroDeclaration(Data, void *);
-  IPLGetMacroDeclaration(Data, const void *);
+  IPLSetMacroDeclaration(ImageFileName, std::string) IPLGetMacroDeclaration(ImageFileName, std::string)
+    IPLSetMacroDeclaration(SliceLocation, float) IPLGetMacroDeclaration(SliceLocation, float)
+      IPLSetMacroDeclaration(SliceOffset, int) IPLGetMacroDeclaration(SliceOffset, int)
+        IPLSetMacroDeclaration(EchoNumber, int) IPLGetMacroDeclaration(EchoNumber, int)
+          IPLSetMacroDeclaration(ImageNumber, int) IPLGetMacroDeclaration(ImageNumber, int)
+            IPLSetMacroDeclaration(Data, void *) IPLGetMacroDeclaration(Data, const void *)
 
-private:
-  std::string  m_ImageFileName{};
+              private : std::string m_ImageFileName{};
   float        m_SliceLocation{};
   int          m_SliceOffset{};
   int          m_EchoNumber{};