diff --git a/src/libStreamedXML/Parser.cpp b/src/libStreamedXML/Parser.cpp
index f91b79a..5047ceb 100644
--- a/src/libStreamedXML/Parser.cpp
+++ b/src/libStreamedXML/Parser.cpp
@@ -314,9 +314,12 @@ doBuffer:
                 callback->PI(buffer2, buffer);
                 buffer.clear();
                 state = StateNone;
+            } else if(ch == '?') {
+                buffer += L'?';
             } else {
                 buffer += L'?';
                 buffer += ch;
+                state = StatePIData;
             }
             break;