diff --git a/Detectors/FOCAL/simulation/data/simcuts.dat b/Detectors/FOCAL/simulation/data/simcuts.dat
index 744f67c3c81f4..870e38182f01c 100644
--- a/Detectors/FOCAL/simulation/data/simcuts.dat
+++ b/Detectors/FOCAL/simulation/data/simcuts.dat
@@ -14,3 +14,5 @@ FOC    3   1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  -1.  -
 FOC    6   5.e-5  1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  -1.  -1    -1    -1    -1     1    -1     3    -1    -1    -1    -1    -1
 * Aluminium
 FOC    11  5.e-5  1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  -1.  -1    -1    -1    -1     1    -1     3    -1    -1    -1    -1    -1
+* Air
+FOC    13  1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  1.e-4  -1.  -1    -1    -1    -1     1    -1     3    -1    -1    -1    -1    -1