diff --git a/c04_string/praisel.c b/c04_string/praise1.c
similarity index 82%
rename from c04_string/praisel.c
rename to c04_string/praise1.c
index 832ac68..914e9a9 100644
--- a/c04_string/praisel.c
+++ b/c04_string/praise1.c
@@ -1,4 +1,4 @@
-/* praisel.c - 使用不同类型的字符串 */
+/* praise1.c - 使用不同类型的字符串 */
 #include <stdio.h>
 #define PRAISE "You are an extraordinary being."