diff --git a/core2/Basetype2.cc b/core2/Basetype2.cc
index ae2f921994425d1a3e0974e4c121cdc8a2da18d9..231fbee13cc60018a2ccee4da189db6f12beadfb 100644
--- a/core2/Basetype2.cc
+++ b/core2/Basetype2.cc
@@ -6814,7 +6814,9 @@ int Record_Type::OER_decode(const TTCN_Typedescriptor_t& p_td, TTCN_Buffer& p_bu
     }
     if (get_at(p_td.oer->p[i])->is_optional() || is_default_field) {
       if (!(uc[0] & 1 << (7-act_pos))) {
-        get_at(p_td.oer->p[i])->set_to_omit();
+        if (get_at(p_td.oer->p[i])->is_optional()) {
+          get_at(p_td.oer->p[i])->set_to_omit();
+        }
       } else {
         get_at(p_td.oer->p[i])->OER_decode(*fld_descr(p_td.oer->p[i]), p_buf, p_oer);
       }
diff --git a/regression_test/OER/OER.ttcn b/regression_test/OER/OER.ttcn
index 9cba67b5d886bbea97edf1735f9febab84e8ac31..531ca79c3fa7efc2b2e2b079032ad4ce4bc8bc00 100644
--- a/regression_test/OER/OER.ttcn
+++ b/regression_test/OER/OER.ttcn
@@ -3571,6 +3571,20 @@
  	  }
  	  setverdict(pass);
  	}
+ 	
+ 	external function dec_RecWithDefault(in octetstring stream) return RecWithDefault
+ 	 	with { extension "prototype (convert) decode(OER)" }
+ 	
+ 	// Testing the decoding of a field with a default value (bug 534769)
+ 	testcase tc_default() runs on EmptyCT {
+ 	  var octetstring enc := '000104'O;
+ 	  var RecWithDefault dec := dec_RecWithDefault(enc);
+ 	  var RecWithDefault dec_exp := { field2 := 4 }; // the default value is currently not set, the field remains unbound, but there should be no DTE
+ 	  if (log2str(dec) != log2str(dec_exp)) {
+ 	    setverdict(fail, "Decoding failed. Got: ", dec, ", expected: ", dec_exp);
+ 	  }
+ 	  setverdict(pass);
+ 	}
 
  	control {
  		execute(tc_boolean());
@@ -3593,6 +3607,7 @@
  		execute(tc_example());
  		execute(tc_529017());
  		execute(tc_533061());
+ 		execute(tc_default());
  	}
  	
 }
diff --git a/regression_test/OER/Types.asn b/regression_test/OER/Types.asn
index a15619d2b176d0882cc0cd3a413738b5ffddd6b1..99f60ef03810fb752284a08065dd94f4c2307ae3 100644
--- a/regression_test/OER/Types.asn
+++ b/regression_test/OER/Types.asn
@@ -543,5 +543,11 @@ Rec533061 ::= SEQUENCE
   field-ext2 REAL OPTIONAL
 }
 
+RecWithDefault ::= SEQUENCE
+{
+  field1 INTEGER DEFAULT 1,
+  field2 INTEGER
+}
+
 
 END