diff --git a/.ci_scripts/build.sh b/.ci_scripts/build.sh
index f3082228a774653718cbf9fab754f0952e902f04..aa78e01d15fc8db368fbe54abebb415d7a1cb664 100755
--- a/.ci_scripts/build.sh
+++ b/.ci_scripts/build.sh
@@ -1,23 +1,23 @@
 #!/bin/bash
 
 # Build the project.
-# Usage: build.sh [-d working_directory] [-t cmake_toolchain_file]
-#   -d working_directory: The directory to build the project in.
+# Usage: build.sh [-C working_directory] [-t cmake_toolchain_file]
+#   -C working_directory: The directory to build the project in.
 
 # Default values
 WORKING_DIRECTORY=""
 
 # Print usage information
 usage() {
-    echo "Usage: $0 [-d working_directory]" 1>&2
+    echo "Usage: $0 [-C working_directory]" 1>&2
     exit 1
 }
 
 # Parse command line arguments
-while getopts "d:" opt;
+while getopts "C:" opt;
 do
     case "${opt}" in
-        d)
+        C)
             # Working directory
             WORKING_DIRECTORY="${OPTARG}"
             echo "Building in directory ${WORKING_DIRECTORY}"
diff --git a/.github/workflows/unit-tests.yaml b/.github/workflows/unit-tests.yaml
index d9e69a49a8beba1b56144f35d4ff61aa9edaea44..b89710a3b8aa955799702f9569eac62acda01bb2 100644
--- a/.github/workflows/unit-tests.yaml
+++ b/.github/workflows/unit-tests.yaml
@@ -17,7 +17,7 @@ jobs:
         run: sudo $GITHUB_WORKSPACE/.ci_scripts/install_packages.sh
 
       - name: Build project with CMake
-        run: $GITHUB_WORKSPACE/.ci_scripts/build.sh -d $GITHUB_WORKSPACE
+        run: $GITHUB_WORKSPACE/.ci_scripts/build.sh -C $GITHUB_WORKSPACE
 
       - name: Run CUnit tests
         run: $GITHUB_WORKSPACE/.ci_scripts/run_tests.sh