diff --git a/scripts/ci/run_ci.sh b/scripts/ci/run_ci.sh
index d79f974e957..59c373ff085 100755
--- a/scripts/ci/run_ci.sh
+++ b/scripts/ci/run_ci.sh
@@ -251,7 +251,12 @@ if [ -n "$main_ci" ]; then
 
 	# Save list of tests to be run
 	${sanitycheck} ${sanitycheck_options} --save-tests test_file_3.txt || exit 1
-	cat test_file_1.txt test_file_2.txt test_file_3.txt > test_file.txt
+
+	# Remove headers from all files but the first one to generate one
+	# single file with only one header row
+	tail -n +2 test_file_2.txt > test_file_2_in.txt
+	tail -n +2 test_file_1.txt > test_file_1_in.txt
+	cat test_file_3.txt test_file_2_in.txt test_file_1_in.txt > test_file.txt
 
 	# Run a subset of tests based on matrix size
 	${sanitycheck} ${sanitycheck_options} --load-tests test_file.txt \