1 files changed, 1 insertions, 1 deletions
diff --git a/ruby.h b/ruby.h
index 76ea5d8b7c..ee6f572c5f 100644
--- a/ruby.h
+++ b/ruby.h
@@ -214,7 +214,7 @@ VALUE rb_str_to_str _((VALUE));
 VALUE rb_string_value _((volatile VALUE*));
 char *rb_string_value_ptr _((volatile VALUE*));
 
-#define StringValue(v) if (TYPE(v) != T_STRING) rb_string_value(&(v))
+#define StringValue(v) rb_string_value(&(v))
 #define StringValuePtr(v) rb_string_value_ptr(&(v))
 
 void rb_check_safe_obj _((VALUE));