diff --git a/include/aoc/CeresSearch.hpp b/include/aoc/CeresSearch.hpp
index 5247409..484c706 100644
--- a/include/aoc/CeresSearch.hpp
+++ b/include/aoc/CeresSearch.hpp
@@ -19,8 +19,8 @@
 
 #include <aoc/LinesSolver.hpp>
 
-class CeresSearch :
-    public LinesSolver
+class CeresSearch
+    : public LinesSolver
 {
 public:
     std::string getPuzzleName() const override;
diff --git a/include/aoc/GuardGallivant.hpp b/include/aoc/GuardGallivant.hpp
index 78f952c..5f287d2 100644
--- a/include/aoc/GuardGallivant.hpp
+++ b/include/aoc/GuardGallivant.hpp
@@ -17,8 +17,8 @@
 
 #include <aoc/LinesSolver.hpp>
 
-class GuardGallivant :
-    public LinesSolver
+class GuardGallivant
+    : public LinesSolver
 {
 public:
     Point2 start_{};
diff --git a/include/aoc/LinesSolver.hpp b/include/aoc/LinesSolver.hpp
index 78ea1b4..519829d 100644
--- a/include/aoc/LinesSolver.hpp
+++ b/include/aoc/LinesSolver.hpp
@@ -20,8 +20,8 @@
 #include <aoc/Point2.hpp>
 #include <aoc/Solver.hpp>
 
-class LinesSolver :
-    public Solver
+class LinesSolver
+    : public Solver
 {
 public:
     void processDataLine(const std::string& line) override;
diff --git a/include/aoc/PrintQueue.hpp b/include/aoc/PrintQueue.hpp
index fa3f185..f4ddeef 100644
--- a/include/aoc/PrintQueue.hpp
+++ b/include/aoc/PrintQueue.hpp
@@ -17,8 +17,8 @@
 
 #include <aoc/Solver.hpp>
 
-class PrintQueue :
-    public Solver
+class PrintQueue
+    : public Solver
 {
 public:
     PrintQueue();