diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index a96cb8299e..ccb076d896 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -32,7 +32,7 @@ jobs:
       # TODO(andyz): When this clang-tidy issue is fixed, remove -Wno-unknown-warning-option
       # https://stackoverflow.com/a/41673702
       CXXFLAGS: >-
-        -Wall -Wextra -Wwrite-strings -Wunreachable-code -Wpointer-arith -Wredundant-decls -Wno-unknown-warning-option -Wno-cpp
+        -Wall -Wextra -Wwrite-strings -Wunreachable-code -Wpointer-arith -Wredundant-decls -Wno-unknown-warning-option
       CLANG_TIDY_ARGS: --fix --fix-errors --format-style=file
       DOCKER_IMAGE: moveit/moveit2:${{ matrix.env.IMAGE }}
       UPSTREAM_WORKSPACE: >