1 files changed, 2 insertions, 0 deletions
diff --git a/src/Real.cpp b/src/Real.cpp
index 02d1d9b..b743ab5 100644
--- a/src/Real.cpp
+++ b/src/Real.cpp
@@ -39,6 +39,8 @@ Real::Real(const PList::Real& d) : Node(PLIST_INT)
 
 Real& Real::operator=(const PList::Real& d)
 {
+    if (this == &d) return *this;
+
     plist_free(_node);
     _node = plist_copy(d.GetPlist());
     return *this;