--- a/src/utils/base64.cpp
+++ b/src/utils/base64.cpp
@@ -91,7 +91,7 @@
 {
     int io = 0, state = 0, ch = 0;
     unsigned int ii = 0;
-    out.erase();
+    out.clear();
     size_t ilen = in.length();
     out.reserve(ilen);
 
@@ -217,7 +217,7 @@
     unsigned char input[3];
     unsigned char output[4];
 
-    out.erase();
+    out.clear();
 
     int srclength = in.length();
     int sidx = 0;