Fix a compiler warning

[pulseview.git] / pv / binding / inputoutput.cpp

diff --git a/pv/binding/inputoutput.cpp b/pv/binding/inputoutput.cpp
index f9a061c76e78c7b7e77a33ec1d04250328263b70..9ba387fbc0cb01a01854010463848ae0dbf3c3ce 100644 (file)
--- a/pv/binding/inputoutput.cpp
+++ b/pv/binding/inputoutput.cpp
@@ -59,7 +59,7 @@ namespace binding {
 InputOutput::InputOutput(
        const map<string, shared_ptr<Option>> &options)
 {
-       for (const pair<string, shared_ptr<Option>>& o : options) {
+       for (const pair<const string, shared_ptr<Option>>& o : options) {
                const shared_ptr<Option> &opt = o.second;
                assert(opt);