diff --git a/src/Row.cpp b/src/Row.cpp
index 13a10be174..b344ed037b 100644
--- a/src/Row.cpp
+++ b/src/Row.cpp
@@ -28,7 +28,7 @@ Row::Row()
 {}
 
 
-Row::Row(pos_type pos)
+Row::Row(pos_type pos), separator(0), hfill(0), label_hfill(0), x(0)
 	: pos_(pos), end_(0)
 {}