diff --git a/source/Commands/CommandObjectBreakpointCommand.cpp b/source/Commands/CommandObjectBreakpointCommand.cpp
index f308ae3..53b6b4e 100644
--- a/source/Commands/CommandObjectBreakpointCommand.cpp
+++ b/source/Commands/CommandObjectBreakpointCommand.cpp
@@ -413,7 +413,7 @@
         SetOptionValue (uint32_t option_idx, const char *option_arg)
         {
             Error error;
-            char short_option = (char) m_getopt_table[option_idx].val;
+            const int short_option = m_getopt_table[option_idx].val;
 
             switch (short_option)
             {