diff --git a/.clang-format b/.clang-format
index a75a2c2..e5530e6 100644
--- a/.clang-format
+++ b/.clang-format
@@ -104,7 +104,7 @@
 PenaltyBreakString: 1000
 PenaltyBreakTemplateDeclaration: 10
 PenaltyExcessCharacter: 1000000
-PenaltyReturnTypeOnItsOwnLine: 60
+PenaltyReturnTypeOnItsOwnLine: 150
 PenaltyIndentedWhitespace: 1
 PointerAlignment: Left
 QualifierAlignment: Left
diff --git a/inc/post_code.hpp b/inc/post_code.hpp
index db7533f..9127cbf 100644
--- a/inc/post_code.hpp
+++ b/inc/post_code.hpp
@@ -131,8 +131,8 @@
     ~PostCode() {}
 
     std::vector<postcode_t> getPostCodes(uint16_t index) override;
-    std::map<uint64_t, postcode_t>
-        getPostCodesWithTimeStamp(uint16_t index) override;
+    std::map<uint64_t, postcode_t> getPostCodesWithTimeStamp(
+        uint16_t index) override;
     void deleteAll() override;
 
   private:
diff --git a/src/post_code.cpp b/src/post_code.cpp
index 6473562..82791c2 100644
--- a/src/post_code.cpp
+++ b/src/post_code.cpp
@@ -58,8 +58,8 @@
     return codesVec;
 }
 
-std::map<uint64_t, postcode_t>
-    PostCode::getPostCodesWithTimeStamp(uint16_t index)
+std::map<uint64_t, postcode_t> PostCode::getPostCodesWithTimeStamp(
+    uint16_t index)
 {
     if (1 == index && !postCodes.empty())
     {