diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-18/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-18/Dockerfile
index 6e7d58abb63a..a8727399a158 100644
--- a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-18/Dockerfile
+++ b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-18/Dockerfile
@@ -61,4 +61,4 @@ RUN /scripts/build-gccjit.sh /scripts
 
 ARG SCRIPT_ARG
 COPY scripts/${SCRIPT_ARG} /tmp/script.sh
-ENV SCRIPT= /tmp/script.sh
+ENV SCRIPT /tmp/script.sh
diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-19/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-19/Dockerfile
index 77750c5c9894..7639cc40dac6 100644
--- a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-19/Dockerfile
+++ b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-19/Dockerfile
@@ -61,4 +61,4 @@ RUN /scripts/build-gccjit.sh /scripts
 
 ARG SCRIPT_ARG
 COPY scripts/${SCRIPT_ARG} /tmp/script.sh
-ENV SCRIPT= /tmp/script.sh
+ENV SCRIPT /tmp/script.sh