diff --git a/docs/quickstart/apollo_2_5_hardware_system_installation_guide_v1.md b/docs/quickstart/apollo_2_5_hardware_system_installation_guide_v1.md
index af64fc6e3fad4316cbca5d30e34ef7fa7eb37861..a20e5fc9442d2480ecea7530b5b05693b8336622 100644
--- a/docs/quickstart/apollo_2_5_hardware_system_installation_guide_v1.md
+++ b/docs/quickstart/apollo_2_5_hardware_system_installation_guide_v1.md
@@ -782,7 +782,7 @@ Follow these steps:
 
 2.   Place the onboard computer system, the 6108GC, inside the trunk (recommended).
 
-     For example, Apollo 2.0 uses 4x4 self-tapping screws to bolt the 6108GC to the carpeted floor of the trunk. ![IPC-bolt_down-936x720](images/Mount_ipc_on_carpet.JPG)
+     For example, Apollo 2.5 uses 4x4 self-tapping screws to bolt the 6108GC to the carpeted floor of the trunk. ![IPC-bolt_down-936x720](images/Mount_ipc_on_carpet.JPG)
 
 3. Mount the IPC so that its front and back sides(where all ports are located) face the right side (passenger) or the left side(driver) of the trunk.