diff --git a/MString.cpp b/MString.cpp
index f24c571..57bb207 100644
--- a/MString.cpp
+++ b/MString.cpp
@@ -390,7 +390,7 @@ namespace coreutils {
 	 ch1 <<= 4;
 	 ch1 &= 240;
 	 if(eod())
-	   coreutils::Exception("conversion from hex requires even number of characters.");
+	   throw coreutils::Exception("conversion from hex requires even number of characters.");
 	 char ch2 = nextChar();
 	 ch2 -= 48;
 	 if(ch2 > 9)