diff --git a/Dockerfile.crf b/Dockerfile.crf
index 82bca0b464..451131817f 100644
--- a/Dockerfile.crf
+++ b/Dockerfile.crf
@@ -80,13 +80,13 @@ WORKDIR /opt/grobid
 
 COPY --from=builder /opt/grobid .
 
+ENV GROBID_SERVICE_OPTS "-Djava.library.path=grobid-home/lib/lin-64:grobid-home/lib/lin-64/jep --add-opens java.base/java.lang=ALL-UNNAMED --add-opens java.base/sun.nio.ch=ALL-UNNAMED --add-opens java.base/java.io=ALL-UNNAMED"
+
 ARG TARGETARCH
 RUN if [ "$TARGETARCH" = "arm64" ]; then \
-        PROCESS_MECHANISM="-Djdk.lang.Process.launchMechanism=vfork"; \
+        ENV PGROBID_SERVICE_OPTS = "-Djdk.lang.Process.launchMechanism=vfork ${PGROBID_SERVICE_OPTS}"; \
     fi
 
-ENV GROBID_SERVICE_OPTS "$PROCESS_MECHANISM -Djava.library.path=grobid-home/lib/lin-64:grobid-home/lib/lin-64/jep --add-opens java.base/java.lang=ALL-UNNAMED --add-opens java.base/sun.nio.ch=ALL-UNNAMED --add-opens java.base/java.io=ALL-UNNAMED"
-
 CMD ["./grobid-service/bin/grobid-service"]
 
 ARG GROBID_VERSION