diff --git a/gptcl.cc b/gptcl.cc
index 34c9421..0d578eb 100644
--- a/gptcl.cc
+++ b/gptcl.cc
@@ -155,7 +155,7 @@ int GPTDataCL::DoOptions(int argc, char* argv[]) {
    } // while
 
    // Assume first non-option argument is the device filename....
-   device = (char*) poptGetArg(poptCon);
+   device = strdup((char*) poptGetArg(poptCon));
    poptResetContext(poptCon);
 
    if (device != NULL) {