diff --git a/src/drivers/magnetometer/rm3100/rm3100.cpp b/src/drivers/magnetometer/rm3100/rm3100.cpp
index 5ade19dca1..46070ed6e0 100644
--- a/src/drivers/magnetometer/rm3100/rm3100.cpp
+++ b/src/drivers/magnetometer/rm3100/rm3100.cpp
@@ -66,6 +66,8 @@ RM3100::~RM3100()
 	perf_free(_comms_errors);
 	perf_free(_range_errors);
 	perf_free(_conf_errors);
+
+	delete _interface;
 }
 
 int RM3100::self_test()