diff --git a/dbm_lib/config/config_raw_feature.py b/dbm_lib/config/config_raw_feature.py
index b246ab35..554359cd 100644
--- a/dbm_lib/config/config_raw_feature.py
+++ b/dbm_lib/config/config_raw_feature.py
@@ -196,6 +196,7 @@ class ConfigRawReader(object):
             self.com_exp = config['raw_feature']['com_exp']
             self.com_lower_exp = config['raw_feature']['com_lower_exp']
             self.com_upper_exp = config['raw_feature']['com_upper_exp']
+            self.pai_exp = config['raw_feature']['pai_exp']
             self.hap_exp_full = config['raw_feature']['hap_exp_full']
             self.sad_exp_full = config['raw_feature']['sad_exp_full']
             self.sur_exp_full = config['raw_feature']['sur_exp_full']
@@ -210,6 +211,8 @@ class ConfigRawReader(object):
             self.com_exp_full = config['raw_feature']['com_exp_full']
             self.com_lower_exp_full = config['raw_feature']['com_lower_exp_full']
             self.com_upper_exp_full = config['raw_feature']['com_upper_exp_full']
+            self.pai_exp_full = config['raw_feature']['pai_exp_full']
+
             self.fac_AsymMaskMouth = config['raw_feature']['fac_AsymMaskMouth']
             self.fac_AsymMaskEye = config['raw_feature']['fac_AsymMaskEye']
             self.fac_AsymMaskEyebrow = config['raw_feature']['fac_AsymMaskEyebrow']
diff --git a/dbm_lib/dbm_features/raw_features/util/video_util.py b/dbm_lib/dbm_features/raw_features/util/video_util.py
index fe47e635..cbde2803 100644
--- a/dbm_lib/dbm_features/raw_features/util/video_util.py
+++ b/dbm_lib/dbm_features/raw_features/util/video_util.py
@@ -171,6 +171,8 @@ def calc_of_for_video(of,face_cfg,fe_cfg):
     emotion_exp(face_cfg.LOWER_ACTION_UNITS,of,[fe_cfg.com_lower_exp,fe_cfg.com_lower_exp_full],fe_cfg.err_reason)
     #Composite upper face Expressivity
     emotion_exp(face_cfg.UPPER_ACTION_UNITS,of,[fe_cfg.com_upper_exp,fe_cfg.com_upper_exp_full],fe_cfg.err_reason)
+    #Composite pain expressivity
+    emotion_exp(face_cfg.pai,of,[fe_cfg.pai_exp,fe_cfg.pai_exp_full],fe_cfg.err_reason)    
     #AU happiness presence
     emotion_pres(face_cfg.happiness,of,fe_cfg.happ_occ,fe_cfg.err_reason)
     #AU Sad presence
diff --git a/dbm_lib/dbm_features/raw_features/video/face_config/face_config_reader.py b/dbm_lib/dbm_features/raw_features/video/face_config/face_config_reader.py
index 19fe1d28..b861571f 100644
--- a/dbm_lib/dbm_features/raw_features/video/face_config/face_config_reader.py
+++ b/dbm_lib/dbm_features/raw_features/video/face_config/face_config_reader.py
@@ -31,7 +31,7 @@ class ConfigFaceReader(object):
             self.POS_ACTION_UNITS = config['cdx_face_config']['POS_ACTION_UNITS']
             self.NET_ACTION_UNITS = config['cdx_face_config']['NET_ACTION_UNITS']
             self.LOWER_ACTION_UNITS = config['cdx_face_config']['LOWER_ACTION_UNITS']
-            self.UPPER_ACTION_UNITS = config['cdx_face_config']['LOWER_ACTION_UNITS']           
+            self.UPPER_ACTION_UNITS = config['cdx_face_config']['LOWER_ACTION_UNITS']
             self.happiness = config['cdx_face_config']['happiness']
             self.sadness = config['cdx_face_config']['sadness']
             self.surprise = config['cdx_face_config']['surprise']
@@ -39,6 +39,7 @@ class ConfigFaceReader(object):
             self.anger = config['cdx_face_config']['anger']
             self.disgust = config['cdx_face_config']['disgust']
             self.contempt = config['cdx_face_config']['contempt']
+            self.pain = config['cdx_face_config']['pain']
             self.cai = config['cdx_face_config']['CAI']
             self.SELECTED_FEATURES = config['cdx_face_config']['SELECTED_FEATURES'].split(',')
             self.face_expr_dir = config['cdx_face_config']['face_expr_dir']
diff --git a/resources/features/derived_feature.yml b/resources/features/derived_feature.yml
index e48350b0..ecff066a 100644
--- a/resources/features/derived_feature.yml
+++ b/resources/features/derived_feature.yml
@@ -130,6 +130,7 @@ derive_feature:
     com_exp: ['mean', 'std', 'pct']
     com_lower_exp: ['mean','std','pct']
     com_upper_exp: ['mean','std','pct']
+    pai_exp: ['mean','std','pct']
     hap_exp_full: ['mean', 'std']
     sad_exp_full: ['mean', 'std']
     sur_exp_full: ['mean', 'std']
@@ -143,6 +144,7 @@ derive_feature:
     com_exp_full: ['mean', 'std']
     com_lower_exp_full: ['mean','std']
     com_upper_exp_full: ['mean', 'std']
+    pai_exp_full: ['mean','std']
 
     #Facial Landmarks
     fac_LMK00disp: ['mean', 'std']
diff --git a/resources/features/raw_feature.yml b/resources/features/raw_feature.yml
index 9f98ffca..736393bb 100644
--- a/resources/features/raw_feature.yml
+++ b/resources/features/raw_feature.yml
@@ -28,6 +28,8 @@ raw_feature:
     com_exp: fac_comintsoft
     com_lower_exp: fac_comlowintsoft
     com_upper_exp: fac_comuppintsoft
+    pai_exp: fac_paiintsoft
+
     hap_exp_full: fac_hapinthard
     sad_exp_full: fac_sadinthard
     sur_exp_full: fac_surinthard
@@ -42,6 +44,7 @@ raw_feature:
     com_exp_full: fac_cominthard
     com_lower_exp_full: fac_comlowinthard
     com_upper_exp_full: fac_comuppinthard
+    pai_exp_full: fac_paiinthard
 
     #Facial asymmetry
     fac_AsymMaskMouth: fac_asymmaskmouth
diff --git a/resources/services/face_util.yml b/resources/services/face_util.yml
index 0681f599..d4fe6274 100644
--- a/resources/services/face_util.yml
+++ b/resources/services/face_util.yml
@@ -12,6 +12,7 @@ cdx_face_config:
     anger: [[4, 5, 7, 23]]
     disgust: [[9, 15]]
     contempt: [[12, 14]]
+    pain: [[4, 6, 7, 9, 10, 12, 20, 26]]
     CAI: [[6, 12],[1, 4, 15],[2, 5, 26],[7, 20, 26],[23],[9],[12, 14]]
     SELECTED_FEATURES: AU,POSE
     face_expr_dir: /video/face_expressivity