diff --git a/app/common/timerange.cpp b/app/common/timerange.cpp
index a9cbad326..ac04bdd88 100644
--- a/app/common/timerange.cpp
+++ b/app/common/timerange.cpp
@@ -296,6 +296,11 @@ uint qHash(const TimeRange &r, uint seed)
   return qHash(r.in(), seed) ^ qHash(r.out(), seed);
 }
 
+TimeRangeListFrameIterator::TimeRangeListFrameIterator() :
+  TimeRangeListFrameIterator(TimeRangeList(), rational::NaN)
+{
+}
+
 TimeRangeListFrameIterator::TimeRangeListFrameIterator(const TimeRangeList &list, const rational &timebase) :
   list_(list),
   timebase_(timebase),
diff --git a/app/common/timerange.h b/app/common/timerange.h
index 3a7be3054..14b12ebae 100644
--- a/app/common/timerange.h
+++ b/app/common/timerange.h
@@ -151,7 +151,7 @@ private:
 class TimeRangeListFrameIterator
 {
 public:
-  TimeRangeListFrameIterator() = default;
+  TimeRangeListFrameIterator();
   TimeRangeListFrameIterator(const TimeRangeList &list, const rational &timebase);
 
   bool GetNext(rational *out);