diff --git a/CppCoreGuidelines.md b/CppCoreGuidelines.md
index 0e20c42..aa1f0df 100644
--- a/CppCoreGuidelines.md
+++ b/CppCoreGuidelines.md
@@ -4945,7 +4945,7 @@ To avoid repetition and accidental differences.
         int y;
     public:
         Date(int ii, Month mm, year yy)
-            :i{ii}, m{mm} y{yy}
+            :i{ii}, m{mm}, y{yy}
             { if (!valid(i, m, y)) throw Bad_date{}; }
 
         Date(int ii, Month mm)
@@ -4964,7 +4964,7 @@ The common action gets tedious to write and may accidentally not be common.
         int y;
     public:
         Date2(int ii, Month mm, year yy)
-            :i{ii}, m{mm} y{yy}
+            :i{ii}, m{mm}, y{yy}
             { if (!valid(i, m, y)) throw Bad_date{}; }
 
         Date2(int ii, Month mm)