1 files changed, 2 insertions, 0 deletions

diff --git a/src/String.cpp b/src/String.cpp
index 8daec0f..bcd5e2e 100644
--- a/src/String.cpp
+++ b/src/String.cpp
@@ -40,6 +40,8 @@ String::String(const PList::String& s) : Node(PLIST_INT)
 
 String& String::operator=(const PList::String& s)
 {
+    if (this == &s) return *this;
+
     plist_free(_node);
     _node = plist_copy(s.GetPlist());
     return *this;