diff --git a/lib/std/core/types.c3 b/lib/std/core/types.c3
index 6b40b1145..cf6d9d6c1 100644
--- a/lib/std/core/types.c3
+++ b/lib/std/core/types.c3
@@ -8,18 +8,24 @@ fault ConversionResult
 	VALUE_OUT_OF_RANGE,
 	VALUE_OUT_OF_UNSIGNED_RANGE,
 }
+
 <*
- @require $Type.kindof.is_int() || $Type.kindof == TypeKind.ENUM "Argument was not an integer"
+ @require $Type.kindof.is_int() "Type was not an integer"
+ @require v.type.kindof == ENUM "Value was not an enum"
+*>
+macro any_to_enum_ordinal(any v, $Type)
+{
+	return any_to_int(v.as_inner(), $Type);
+}
+
+<*
+ @require $Type.kindof.is_int() "Type was not an integer"
+ @require v.type.kindof.is_int() "Value was not an integer"
 *>
 macro any_to_int(any v, $Type)
 {
 	typeid any_type = v.type;
 	TypeKind kind = any_type.kindof;
-	if (kind == TypeKind.ENUM)
-	{
-		any_type = any_type.inner;
-		kind = any_type.kindof;
-	}
 	bool is_mixed_signed = $Type.kindof != any_type.kindof;
 	$Type max = $Type.max;
 	$Type min = $Type.min;
diff --git a/lib/std/io/formatter.c3 b/lib/std/io/formatter.c3
index fe4f1c76d..31319decb 100644
--- a/lib/std/io/formatter.c3
+++ b/lib/std/io/formatter.c3
@@ -195,7 +195,7 @@ fn usz! Formatter.out_str(&self, any arg) @private
 	switch (arg.type.kindof)
 	{
 		case ENUM:
-			usz i = types::any_to_int(arg, usz)!!;
+			usz i = types::any_to_enum_ordinal(arg, usz)!!;
 			assert(i < arg.type.names.len, "Illegal enum value found, numerical value was %d.", i);
 			return self.out_substr(arg.type.names[i]);
 		case STRUCT:
diff --git a/lib/std/io/formatter_private.c3 b/lib/std/io/formatter_private.c3
index 760eb4ff1..f57c6c29e 100644
--- a/lib/std/io/formatter_private.c3
+++ b/lib/std/io/formatter_private.c3
@@ -606,6 +606,10 @@ fn usz! Formatter.ntoa_any(&self, any arg, uint base) @private
 
 fn usz! Formatter.out_char(&self, any arg) @private
 {
+	if (!arg.type.kindof.is_int())
+	{
+		return self.out_substr("<NOT CHAR>");
+	}
 	usz len = 1;
 	uint l = 1;
 	// pre padding
diff --git a/releasenotes.md b/releasenotes.md
index 2ef396494..fc75cf051 100644
--- a/releasenotes.md
+++ b/releasenotes.md
@@ -31,6 +31,8 @@
 - Fix crash on project.json not having an empty set of targets.
 - Miscompile when indexing an array with small unsigned types for enums.
 - Change CBool to be 1 byte.
+- `any_to_int` checks value to be int and no longer works with enum.
+- Add check in formatter printing "%c".
 
 ### Stdlib changes
 - Increase BitWriter.write_bits limit up to 32 bits.