diff --git a/src/mms/iso_mms/common/mms_value.c b/src/mms/iso_mms/common/mms_value.c
index d5cbaf89..199e3ec4 100644
--- a/src/mms/iso_mms/common/mms_value.c
+++ b/src/mms/iso_mms/common/mms_value.c
@@ -1999,6 +1999,7 @@ MmsValue_printToBuffer(const MmsValue* self, char* buffer, int bufferSize)
     case MMS_STRUCTURE:
     case MMS_ARRAY:
         {
+            if (bufferSize==0) break;
             buffer[0] = '{';
 
             int bufPos = 1;