diff --git a/include/utils/String8.h b/include/utils/String8.h
index 0b18fe3..4e41410 100644
--- a/include/utils/String8.h
+++ b/include/utils/String8.h
@@ -374,7 +374,7 @@
 
 inline String8 String8::operator+(const String8& other) const
 {
-    String8 tmp;
+    String8 tmp(*this);
     tmp += other;
     return tmp;
 }
@@ -387,7 +387,7 @@
 
 inline String8 String8::operator+(const char* other) const
 {
-    String8 tmp;
+    String8 tmp(*this);
     tmp += other;
     return tmp;
 }