diff --git a/src/FitRideFile.cpp b/src/FitRideFile.cpp
index 223938b41..dbdbe3ccc 100644
--- a/src/FitRideFile.cpp
+++ b/src/FitRideFile.cpp
@@ -20,6 +20,7 @@
 #include <QSharedPointer>
 #include <QMap>
 #include <QSet>
+#include <assert.h>
 #include <stdio.h>
 #include <stdint.h>