diff --git a/Makefile b/Makefile
index 91acf26..eb1e083 100755
--- a/Makefile
+++ b/Makefile
@@ -25,7 +25,7 @@
              --configure TooManyTestCases:50 -e TooManyTestCases \
              --configure TooFewTestSteps:1 \
              --configure TooFewKeywordSteps:1 \
-             --configure FileTooLong:600 -e FileTooLong \
+             --configure FileTooLong:1000 -e FileTooLong \
              -e TrailingWhitespace
 
 PYTHON_FILES := $(wildcard libraries/*.py)