diff --git a/python/Dockerfile b/python/Dockerfile
index e6d2142..9d66b16 100644
--- a/python/Dockerfile
+++ b/python/Dockerfile
@@ -126,7 +126,7 @@ RUN set -eux; \
 		| xargs -r dpkg-query --search \
 		| cut -d: -f1 \
 		| sort -u \
-		| xargs -I sh -c "apt-mark manual {} || echo OK" \
+		| xargs -I {} sh -c "apt-mark manual {} || echo OK" \
 	; \
 	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
 	rm -rf /var/lib/apt/lists/*; \
diff --git a/python/generate_dockerfile.sh b/python/generate_dockerfile.sh
index 7e5b23b..e382d82 100755
--- a/python/generate_dockerfile.sh
+++ b/python/generate_dockerfile.sh
@@ -50,7 +50,7 @@ function install_python() {
     # This is to not remove static lib when using CUDA
     # sed -i "s/ -o -name '\*\.a' / /" "${output_file}"
 
-    sed -i -e 's|xargs -r apt-mark manual \\|xargs -I sh -c "apt-mark manual {} \|\| echo 'OK'" \\|' "${output_file}"
+    sed -i -e 's|xargs -r apt-mark manual \\|xargs -I {} sh -c "apt-mark manual {} \|\| echo 'OK'" \\|' "${output_file}"
 
 # | xargs -r apt-mark manual \
 		# | xargs -I sh -c "apt-mark manual {} || echo 'OK'" \