diff --git a/src/sycomore/TimeInterval.cpp b/src/sycomore/TimeInterval.cpp
index 84721f0..be79b66 100644
--- a/src/sycomore/TimeInterval.cpp
+++ b/src/sycomore/TimeInterval.cpp
@@ -38,6 +38,7 @@ ::shortest(Vector3Q const & k, Quantity const & G_max)
 
 TimeInterval
 ::TimeInterval()
+: TimeInterval(0*sycomore::units::s, 0*sycomore::units::T/sycomore::units::m)
 {
     // Nothing else.
 }