diff --git a/SLAM/FastSLAM2/fast_slam2.py b/SLAM/FastSLAM2/fast_slam2.py
index 86881222..4780b579 100644
--- a/SLAM/FastSLAM2/fast_slam2.py
+++ b/SLAM/FastSLAM2/fast_slam2.py
@@ -25,7 +25,7 @@ SIM_TIME = 50.0  # simulation time [s]
 MAX_RANGE = 20.0  # maximum observation range
 M_DIST_TH = 2.0  # Threshold of Mahalanobis distance for data association.
 STATE_SIZE = 3  # State size [x,y,yaw]
-LM_SIZE = 2  # LM srate size [x,y]
+LM_SIZE = 2  # LM state size [x,y]
 N_PARTICLE = 100  # number of particle
 NTH = N_PARTICLE / 1.5  # Number of particle for re-sampling