diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9fa012707f911de150c15280bd825ea2afbb75ee..3b7051a60205d9ded3d12364148d76bd696baf95 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -41,18 +41,18 @@ stages:
       - runner_system_failure
       - stuck_or_timeout_failure
 
-fast-build:
-  extends: .general
-  only: [merge_requests, branches]
-  stage: precheck
-  image: $BUILD_IMAGE_REGISTRY/otb-ubuntu-native-develop:latest
-  before_script:
-    - export GIT_LFS_SKIP_SMUDGE=1
-    - git checkout $CI_COMMIT_REF_NAME
-    - python3 CI/check_twin_pipelines.py
-  script:
-    - ctest -V -S CI/main_ci.cmake -DIMAGE_NAME:string=ubuntu-18.04-fast
-    - ccache -s
+# fast-build:
+#   extends: .general
+#   only: [merge_requests, branches]
+#   stage: precheck
+#   image: $BUILD_IMAGE_REGISTRY/otb-ubuntu-native-develop:latest
+#   before_script:
+#     - export GIT_LFS_SKIP_SMUDGE=1
+#     - git checkout $CI_COMMIT_REF_NAME
+#     - python3 CI/check_twin_pipelines.py
+#   script:
+#     - ctest -V -S CI/main_ci.cmake -DIMAGE_NAME:string=ubuntu-18.04-fast
+#     - ccache -s
 
 .common-build:
   extends: .general
diff --git a/CI/prepare_superbuild.cmake b/CI/prepare_superbuild.cmake
index da820a238642f6894ddb3d127274863ab4ddeb09..47eec850c1c19af099f0e61ae02b01216a57195e 100644
--- a/CI/prepare_superbuild.cmake
+++ b/CI/prepare_superbuild.cmake
@@ -190,7 +190,7 @@ set ( SB_ARTIFACT_GIT "${OTB_SOURCE_DIR}/superbuild-artifact" )
 # -F /dev/null so the agent is not taking a default file ~/.ssh/..
 execute_process(
   COMMAND ${GIT} "config" "core.sshCommand"
-  "ssh -o StrictHostKeyChecking=no -F /dev/null"
+  "ssh -o StrictHostKeyChecking=no"
   WORKING_DIRECTORY ${SB_ARTIFACT_GIT}
   RESULT_VARIABLE ssh_res
   OUTPUT_VARIABLE ssh_out