diff --git a/json_generator/main.py b/json_generator/main.py
index 6cdee9d..da0bd40 100644
--- a/json_generator/main.py
+++ b/json_generator/main.py
@@ -25,12 +25,19 @@ def modify_variable(var, vars):
 		response = input("Select a property to modify for %s or q to exit property modifying: " %(var.name))
 		
 		if response == "type":
-			response = input("Enter the type of variable this is (currently %s): " %(var.type))
+			response = input("Enter the type of variable this is (currently %s) or c to cancel: " %(var.type))
+			
+			if response == "c" or response == "C":
+				continue
+			
 			vars[var.name].type = response
 			print("Updated to %s." %(response))
 			
 		elif response == "start":
-			response = input("Enter the variable's starting point (currently %f): " %(var.starting_point))
+			response = input("Enter the variable's starting point (currently %f) or c to cancel: " %(var.starting_point))
+			
+			if response == "c" or response == "C":
+				continue
 			
 			try:
 				vars[var.name].starting_point = float(response)
@@ -39,15 +46,10 @@ def modify_variable(var, vars):
 				print("The starting point must be a number.")
 			
 		elif response == "end":
-			response = input("Enter the variable's ending point (currently %f): " %(var.ending_point))
-			
-			try:
-				vars[var.name].ending_point = float(response)
-				print("Updated to %f." %(float(response)))
-			except ValueError:
-				print("The ending point must be a number.")
-			
-			pass
+			response = input("Enter the variable's ending point (currently %f) or c to cancel: " %(var.ending_point))
+
+			if response == "c" or response == "C":
+				continue
 			
 		elif response == "q":
 			return
diff --git a/main.py b/main.py
index 53cf367..25993ee 100755
--- a/main.py
+++ b/main.py
@@ -31,12 +31,19 @@ def modify_variable(var, vars):
 		response = input("Select a property to modify for %s or q to exit property modifying: " %(var.name))
 		
 		if response == "type":
-			response = input("Enter the type of variable this is (currently %s): " %(var.type))
+			response = input("Enter the type of variable this is (currently %s) or c to cancel: " %(var.type))
+			
+			if response == "c" or response == "C":
+				continue
+			
 			vars[var.name].type = response
 			print("Updated to %s." %(response))
 			
 		elif response == "start":
-			response = input("Enter the variable's starting point (currently %f): " %(var.starting_point))
+			response = input("Enter the variable's starting point (currently %f) or c to cancel: " %(var.starting_point))
+			
+			if response == "c" or response == "C":
+				continue
 			
 			try:
 				vars[var.name].starting_point = float(response)
@@ -45,8 +52,11 @@ def modify_variable(var, vars):
 				print("The starting point must be a number.")
 			
 		elif response == "end":
-			response = input("Enter the variable's ending point (currently %f): " %(var.ending_point))
-			
+			response = input("Enter the variable's ending point (currently %f) or c to cancel: " %(var.ending_point))
+
+			if response == "c" or response == "C":
+				continue
+				
 			try:
 				vars[var.name].ending_point = float(response)
 				print("Updated to %f." %(float(response)))