diff --git a/desktop_version/src/UtilityClass.cpp b/desktop_version/src/UtilityClass.cpp
index beffd4c8..a426237f 100644
--- a/desktop_version/src/UtilityClass.cpp
+++ b/desktop_version/src/UtilityClass.cpp
@@ -149,9 +149,9 @@ std::string UtilityClass::timestring( int t )
 
 std::string UtilityClass::number( int _t )
 {
-	const std::string ones_place[] = {"One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine"};
-	const std::string tens_place[] = {"Ten", "Twenty", "Thirty", "Forty", "Fifty", "Sixty", "Seventy", "Eighty", "Ninety"};
-	const std::string teens[] = {"Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen", "Seventeen", "Eighteen", "Nineteen"};
+	static const std::string ones_place[] = {"One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine"};
+	static const std::string tens_place[] = {"Ten", "Twenty", "Thirty", "Forty", "Fifty", "Sixty", "Seventy", "Eighty", "Ninety"};
+	static const std::string teens[] = {"Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen", "Seventeen", "Eighteen", "Nineteen"};
 
 	if (_t < 0)
 	{