diff --git a/helperFunctions.hpp b/helperFunctions.hpp
index 5582697..b44bbf9 100644
--- a/helperFunctions.hpp
+++ b/helperFunctions.hpp
@@ -147,7 +147,14 @@ std::string runCaesar(std::ifstream& infile, bool encode){
 	else{
 		std::cout << "Enter the cipher offset: ";
 		std::cin >> offset;
+		if(std::cin.fail()){
+			std::cin.ignore(10000, '\n');
+			std::cin.clear();
+			std::cout << "That is an invalid offset\nEnter the cipher offset: ";
+			std::cin >> offset;
+		}
 		std::cout << "Enter the input string: ";
+		std::cin.ignore(10000, '\n');
 		std::getline(std::cin, inputString);
 	}