diff --git a/lldb/source/Commands/CommandObjectPlatform.cpp b/lldb/source/Commands/CommandObjectPlatform.cpp
index 3be46ab..10700aa1 100644
--- a/lldb/source/Commands/CommandObjectPlatform.cpp
+++ b/lldb/source/Commands/CommandObjectPlatform.cpp
@@ -606,7 +606,7 @@
         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;
             bool success = false;
 
             switch (short_option)