diff --git a/std/stdio.d b/std/stdio.d
index 1d22b5808be..5f4ef15df10 100644
--- a/std/stdio.d
+++ b/std/stdio.d
@@ -3814,8 +3814,8 @@ void writeln(T...)(T args)
     scope(exit) { std.file.remove(deleteme); }
 
     enum EI : int    { A, B }
-    enum ED : double { A, B }
-    enum EC : char   { A, B }
+    enum ED : double { A = 0, B } // NOTE: explicit initialization to 0 required during Enum init deprecation cycle
+    enum EC : char   { A = 0, B } // NOTE: explicit initialization to 0 required during Enum init deprecation cycle
     enum ES : string { A = "aaa", B = "bbb" }
 
     f.writeln(EI.A);  // false, but A on 2.058
diff --git a/std/traits.d b/std/traits.d
index e10f8049ccf..1ce07e3b52e 100644
--- a/std/traits.d
+++ b/std/traits.d
@@ -7480,7 +7480,7 @@ template OriginalType(T)
 ///
 @safe unittest
 {
-    enum E : real { a }
+    enum E : real { a = 0 } // NOTE: explicit initialization to 0 required during Enum init deprecation cycle
     enum F : E    { a = E.a }
     alias G = const(F);
     static assert(is(OriginalType!E == real));