diff --git a/.github/DockerfileBackendTests b/.github/DockerfileBackendTests
index 979d2112dc..2f1300853a 100644
--- a/.github/DockerfileBackendTests
+++ b/.github/DockerfileBackendTests
@@ -55,3 +55,4 @@ RUN apt-get update \
 RUN rustup component add rustfmt
 COPY --from=bitnami/dotnet-sdk:9.0.101-debian-12-r0 /opt/bitnami/dotnet-sdk /opt/dotnet-sdk
 RUN ln -s /opt/dotnet-sdk/bin/dotnet /usr/bin/dotnet
+ENV DOTNET_ROOT="/opt/dotnet-sdk/bin"