diff --git a/docker/ubuntu20-dotnet6-opencv4.7.0/Dockerfile b/docker/ubuntu20-dotnet6-opencv4.7.0/Dockerfile
index 689062008..cc6ea236d 100644
--- a/docker/ubuntu20-dotnet6-opencv4.7.0/Dockerfile
+++ b/docker/ubuntu20-dotnet6-opencv4.7.0/Dockerfile
@@ -6,7 +6,7 @@ ENV OPENCV_VERSION=4.7.0
 WORKDIR /
 
 # Install opencv dependencies
-RUN apt-get update && apt-get install -y software-properties-common && add-apt-repository ppa:alex-p/tesseract-ocr5
+RUN apt-get update && apt-get install -y software-properties-common && add-apt-repository ppa:alex-p/tesseract-ocr5 \
    && apt-get -y install --no-install-recommends \
       apt-transport-https \
       software-properties-common \