diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 3d4876777..8817a1991 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -149,3 +149,13 @@ ADD_TEST( t_SensThickness_Clic_o2_v4 "${CMAKE_INSTALL_PREFIX}/bin/run_test_${Pac
           ${CMAKE_INSTALL_PREFIX}/bin/TestSensThickness ${CMAKE_CURRENT_SOURCE_DIR}/../CLIC/compact/CLIC_o2_v04/CLIC_o2_v04.xml 300 50 )
 ADD_TEST( t_SensThickness_CLIC_o3_v15 "${CMAKE_INSTALL_PREFIX}/bin/run_test_${PackageName}.sh"
           ${CMAKE_INSTALL_PREFIX}/bin/TestSensThickness ${CMAKE_CURRENT_SOURCE_DIR}/../CLIC/compact/CLIC_o3_v15/CLIC_o3_v15.xml 100 50 )
+
+#--------------------------------------------------
+# check if files named the same contain the same in FCCee
+ADD_TEST(
+    NAME t_test_files_versions_FCCee
+    COMMAND "${CMAKE_INSTALL_PREFIX}/bin/run_test_${PackageName}.sh"
+            "${PROJECT_SOURCE_DIR}/utils/compareIdenticalFiles.sh"
+            "${PROJECT_SOURCE_DIR}/FCCee"
+            "${PROJECT_SOURCE_DIR}/utils/IdenticalFiles_ToBeIgnored.txt"
+)
diff --git a/utils/IdenticalFiles_ToBeIgnored.txt b/utils/IdenticalFiles_ToBeIgnored.txt
new file mode 100644
index 000000000..9e760a722
--- /dev/null
+++ b/utils/IdenticalFiles_ToBeIgnored.txt
@@ -0,0 +1,35 @@
+README.md
+CMakeLists.txt
+DectDimensions.xml
+materials.xml
+#__CLD_ill_named_files__
+additional_materials.xml
+BeamInstrumentation_o3_v01_overlap.xml
+BeamInstrumentation_o3_v02_fitShield.xml
+Beampipe_o4_v03_noNotch_Ta_cone.xml
+Beampipe_o4_v04_noNotch_W_n02_smallBP.xml
+Beampipe_o4_v04_noNotch_W_n02.xml
+Beampipe_o4_v05.xml
+ECalBarrel_o2_v01_03.xml
+ECalEndcap_o2_v01_03.xml
+elements.xml
+FCCee_DectDimensions.xml
+FCCee_o2_v02.xml
+HCalBarrel_o1_v01_01.xml
+HCalEndcap_o1_v01_01.xml
+HOMAbsorber_v00.xml
+InnerTracker_o2_v06_02.xml
+LumiCal_o3_v02_02.xml
+LumiCal_o3_v02_03.xml
+OuterTracker_o2_v06_02.xml
+Solenoid_o1_v01_02.xml
+Vertex_o4_v05_smallBP.xml
+Vertex_o4_v05.xml
+YokeBarrel_o1_v01_02.xml
+YokeEndcap_o1_v01_02.xml
+#__ALLEGRO_ill_named_files__
+ECalBarrel_thetamodulemerged.xml
+ECalBarrel_thetamodulemerged_calibration.xml
+ECalBarrel_thetamodulemerged_upstream.xml
+#__FCCee_ill_named_files__
+FCCee_DectEmptyMaster.xml
diff --git a/utils/compareIdenticalFiles.sh b/utils/compareIdenticalFiles.sh
new file mode 100755
index 000000000..e22c658c0
--- /dev/null
+++ b/utils/compareIdenticalFiles.sh
@@ -0,0 +1,49 @@
+#!/bin/bash
+
+# This script compares all the files named the same within a given path (as argument)
+# If files with the same name have different contents, it prints the paths of those files
+# If the files are identical, nothing is printed
+# Files listed in an ignore file are excluded
+
+# Usage: ./script.sh <search_dir> <ignore_file>
+
+search_dir="$1"
+ignore_file="$2"
+
+# Read filenames to ignore from the ignore file
+files_to_ignore=$(<"$ignore_file")
+
+# Create an associative array to store file paths with the same names
+declare -A file_names
+
+# Initialize status code variable
+status_code=0
+
+# Iterate through files in the directory
+while IFS= read -r -d '' file; do
+    # Get the base name of the file (without the path)
+    file_name=$(basename "$file")
+
+    # Ignore files listed in the ignore file
+    if grep -qx "$file_name" <<< "$files_to_ignore"; then
+        continue
+    fi
+
+    # Check if there is already a file with the same name
+    if [[ -n "${file_names[$file_name]}" ]]; then
+        # Compare the contents of the files
+        if ! cmp -s "$file" "${file_names[$file_name]}"; then
+            # Print the paths of the files if they differ
+            echo "Error. Files with the same name but different contents:"
+            echo "$file"
+            echo "${file_names[$file_name]}"
+            echo
+            status_code=1
+        fi
+    else
+        # Store the file path in the array
+        file_names["$file_name"]="$file"
+    fi
+done < <(find "$search_dir" -not -path '*/.*' -type f -print0)
+
+exit $status_code