diff --git a/Dockerfile b/Dockerfile
index 3737586..3810ee8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,8 +2,8 @@ FROM python:3.11-slim
 
 ARG TARGETPLATFORM TARGETARCH
 RUN apt-get update && apt-get install --no-install-recommends -y curl ffmpeg
-RUN if [ $TARGEARCH == 'arm64' ]; then apt-get install --no-install-recommends -y build-essential ; fi
-RUN if [ $TARGEARCH == 'arm64' ]; then curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y ; fi
+RUN if [ $TARGEARCH = 'arm64' ]; then apt-get install --no-install-recommends -y build-essential ; fi
+RUN if [ $TARGEARCH = 'arm64' ]; then curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y ; fi
 ENV PATH="/root/.cargo/bin:${PATH}"
 RUN apt-get clean && rm -rf /var/lib/apt/lists/*