diff --git a/charts/generic/node-memory-hog/engine.yaml b/charts/generic/node-memory-hog/engine.yaml
index ec5c06c..20c9f65 100644
--- a/charts/generic/node-memory-hog/engine.yaml
+++ b/charts/generic/node-memory-hog/engine.yaml
@@ -27,10 +27,10 @@ spec:
             - name: TOTAL_CHAOS_DURATION
               value: '120'
 
-            ## specify the size as percent of total available memory (in percentage)
-            ## default value 90
-            - name: MEMORY_PERCENTAGE
-              value: '90'
+            ## specify the size as percent of total available memory default value is 30
+            ## Note: For consuming memory in mebibytes change the variable to MEMORY_CONSUMPTION_MEBIBYTES
+            - name: MEMORY_CONSUMPTION_PERCENTAGE
+              value: ''
             
             # ENTER THE COMMA SEPARATED TARGET NODES NAME
             - name: TARGET_NODES
diff --git a/charts/generic/node-memory-hog/experiment.yaml b/charts/generic/node-memory-hog/experiment.yaml
index c7b9808..f62024e 100644
--- a/charts/generic/node-memory-hog/experiment.yaml
+++ b/charts/generic/node-memory-hog/experiment.yaml
@@ -54,10 +54,14 @@ spec:
     - name: TOTAL_CHAOS_DURATION
       value: '120'
 
-    ## specify the size as percent of total available memory (in percentage)
-    ## Default value "90"
-    - name: MEMORY_PERCENTAGE
-      value: '90'    
+    ## specify the size as percent of total available memory Ex: '30'
+    ## NOTE: for selecting this option MEMORY_CONSUMPTION_MEBIBYTES should be empty
+    - name: MEMORY_CONSUMPTION_PERCENTAGE
+      value: ''
+      
+    ## specify the memory size to consume in mebibytes
+    - name: MEMORY_CONSUMPTION_MEBIBYTES
+      value: ''   
 
     # ENTER THE COMMA SEPARATED TARGET NODES NAME
     - name: TARGET_NODES