diff --git a/source/Commands/CommandObjectSource.cpp b/source/Commands/CommandObjectSource.cpp
index f2a2488..0beaadf 100644
--- a/source/Commands/CommandObjectSource.cpp
+++ b/source/Commands/CommandObjectSource.cpp
@@ -745,7 +745,7 @@
 { LLDB_OPT_SET_1  , false, "file",   'f', required_argument, NULL, CommandCompletions::eSourceFileCompletion, eArgTypeFilename,    "The file from which to display source."},
 { LLDB_OPT_SET_1  , false, "line",   'l', required_argument, NULL, 0, eArgTypeLineNum,    "The line number at which to start the display source."},
 { LLDB_OPT_SET_2  , false, "name",   'n', required_argument, NULL, CommandCompletions::eSymbolCompletion, eArgTypeSymbol,    "The name of a function whose source to display."},
-{ LLDB_OPT_SET_3  , false, "address",'a', required_argument, NULL, 0, eArgTypeAddress, "Lookup the address and display the source information for the corresponding file and line."},
+{ LLDB_OPT_SET_3  , false, "address",'a', required_argument, NULL, 0, eArgTypeAddressOrExpression, "Lookup the address and display the source information for the corresponding file and line."},
 { LLDB_OPT_SET_4, false, "reverse", 'r', no_argument, NULL, 0, eArgTypeNone, "Reverse the listing to look backwards from the last displayed block of source."},
 { 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL }
 };