diff --git a/mxRAG/Dockerfile/ubuntu/Dockerfile b/mxRAG/Dockerfile/ubuntu/Dockerfile
index 338590389454f627b23797b3e28de2476b241cec..e7a2bc8bbce315e6f49f4b3d6c844ab710236bdc 100644
--- a/mxRAG/Dockerfile/ubuntu/Dockerfile
+++ b/mxRAG/Dockerfile/ubuntu/Dockerfile
@@ -48,7 +48,7 @@ RUN pip3 install --upgrade setuptools && pip3 install numpy==1.26.4 decorator==5
 
 # 安装cann-toolkit和kernel
 RUN bash Ascend-cann-toolkit*_linux-${ARCH}.run --install --quiet && \
-    bash Ascend-cann-kernels*_linux-${ARCH}.run--install --quiet
+    bash Ascend-cann-kernels*_linux-${ARCH}.run --install --quiet
 ENV ASCEND_HOME_PATH=/home/HwHiAiUser/Ascend/ascend-toolkit/latest
 ENV TOOLCHAIN_HOME=/home/HwHiAiUser/Ascend/ascend-toolkit/latest/toolkit
 ENV ASCEND_TOOLKIT_HOME=/home/HwHiAiUser/Ascend/ascend-toolkit/latest