diff --git a/mbuni/mmlib/mms_mm7soap.c b/mbuni/mmlib/mms_mm7soap.c
index 412b0f5..35d5f7c 100644
--- a/mbuni/mmlib/mms_mm7soap.c
+++ b/mbuni/mmlib/mms_mm7soap.c
@@ -415,7 +415,7 @@ static Octstr *headers_to_soapxml(List *hdrs, MM7Version_t *ver)
 	  octstr_format_append(s, "<mm7:MM7Version>%S</mm7:MM7Version>\n", p);
 	  octstr_destroy(p);
      } else 
-	  octstr_format_append(s, "<mm7:MM7Version>%d.%d.%d</mm7:MM7Version>\n", ver->major, ver->minor1, ver->minor2);
+	  octstr_format_append(s, "<mm7:MM7Version>%s</mm7:MM7Version>\n", MM7_VERSION);
      
      p = http_header_value(hdrs, octstr_imm("VASPID"));     
      q = http_header_value(hdrs, octstr_imm("VASID"));     
diff --git a/mbuni/mmlib/mms_mm7soap.h b/mbuni/mmlib/mms_mm7soap.h
index f436f75..38cb33d 100644
--- a/mbuni/mmlib/mms_mm7soap.h
+++ b/mbuni/mmlib/mms_mm7soap.h
@@ -21,6 +21,8 @@
 #define MM7_SOAP_STATUS_OK(e) ((e) / 1000 == 1)
 #define MM7_DEFAULT_VERSION MMS_3GPP_VERSION
 
+#define MM7_VERSION "5.3.0"
+
 typedef struct MSoapMsg_t MSoapMsg_t;
 
 typedef struct MM7Version_t {