diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3b1d5ee..4773007 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 2.0.4 (2024-11-27)
+
+## Bug Fixes
+
+- fix test errors
+
 ## 2.0.3 (2024-11-26)
 
 ## Bug Fixes
diff --git a/project/raspberrypi4b/README.md b/project/raspberrypi4b/README.md
index 37b99e9..4966873 100644
--- a/project/raspberrypi4b/README.md
+++ b/project/raspberrypi4b/README.md
@@ -329,7 +329,7 @@ ssd1306: 12345abcdEFGH.
 ```shell
 ./ssd1306 -e basic-init --addr=0 --interface=iic
 
-ssd1306: ssd1306: init success.
+ssd1306: init success.
 ```
 
 ```shell
@@ -377,7 +377,7 @@ ssd1306: draw rect 0 0 32 32.
 ```shell
 ./ssd1306 -e advance-init --addr=0 --interface=iic
 
-ssd1306: ssd1306: init success.
+ssd1306: init success.
 ```
 
 ```shell
diff --git a/project/raspberrypi4b/src/main.c b/project/raspberrypi4b/src/main.c
index d27742d..9676a7a 100644
--- a/project/raspberrypi4b/src/main.c
+++ b/project/raspberrypi4b/src/main.c
@@ -494,7 +494,7 @@ uint8_t ssd1306(uint8_t argc, char** argv)
         }
         
         /* output */
-        ssd1306_interface_debug_print("ssd1306: ssd1306: init success.\n");
+        ssd1306_interface_debug_print("ssd1306: init success.\n");
         
         return 0;
     }
@@ -655,7 +655,7 @@ uint8_t ssd1306(uint8_t argc, char** argv)
         }
         
         /* output */
-        ssd1306_interface_debug_print("ssd1306: ssd1306: init success.\n");
+        ssd1306_interface_debug_print("ssd1306: init success.\n");
         
         return 0;
     }
diff --git a/project/stm32f407/README.md b/project/stm32f407/README.md
index db763e6..0717895 100644
--- a/project/stm32f407/README.md
+++ b/project/stm32f407/README.md
@@ -281,7 +281,7 @@ ssd1306: 12345abcdEFGH!@#$<>?{}[];<>.
 ```shell
 ssd1306 -e basic-init --addr=0 --interface=iic
 
-ssd1306: ssd1306: init success.
+ssd1306: init success.
 ```
 
 ```shell
@@ -329,7 +329,7 @@ ssd1306: draw rect 0 0 32 32.
 ```shell
 ssd1306 -e advance-init --addr=0 --interface=iic
 
-ssd1306: ssd1306: init success.
+ssd1306: init success.
 ```
 
 ```shell
diff --git a/project/stm32f407/usr/src/main.c b/project/stm32f407/usr/src/main.c
index b7ab629..7fa6a91 100644
--- a/project/stm32f407/usr/src/main.c
+++ b/project/stm32f407/usr/src/main.c
@@ -489,7 +489,7 @@ uint8_t ssd1306(uint8_t argc, char** argv)
         }
         
         /* output */
-        ssd1306_interface_debug_print("ssd1306: ssd1306: init success.\n");
+        ssd1306_interface_debug_print("ssd1306: init success.\n");
         
         return 0;
     }
@@ -650,7 +650,7 @@ uint8_t ssd1306(uint8_t argc, char** argv)
         }
         
         /* output */
-        ssd1306_interface_debug_print("ssd1306: ssd1306: init success.\n");
+        ssd1306_interface_debug_print("ssd1306: init success.\n");
         
         return 0;
     }