diff --git a/CHANGELOG.md b/CHANGELOG.md
index dc17a26a..bee987d7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -43,6 +43,7 @@ The git repositories are hosted at the following sites:
 
 ### Fixed
 
+* Fixed copy and compare API of BACnetObjectPropertyReference structure. (#1171)
 * Fixed array-bounds on BACnetObjectPropertyReference parsing. (#1167)
 * Fixed the missing BACnetObjectPropertyReference,
   BACnetSCFailedConnectionRequest, BACnetSCHubFunctionConnection,
diff --git a/src/bacnet/bacdevobjpropref.c b/src/bacnet/bacdevobjpropref.c
index 01fd4c57..d5386de8 100644
--- a/src/bacnet/bacdevobjpropref.c
+++ b/src/bacnet/bacdevobjpropref.c
@@ -862,7 +862,8 @@ bool bacnet_object_property_reference_same(
             (value1->object_identifier.instance ==
              value2->object_identifier.instance) &&
             (value1->object_identifier.type ==
-             value2->object_identifier.type)) {
+             value2->object_identifier.type) &&
+            (value1->property_array_index == value2->property_array_index)) {
             status = true;
         }
     }
@@ -886,6 +887,7 @@ bool bacnet_object_property_reference_copy(
         dest->property_identifier = src->property_identifier;
         dest->object_identifier.instance = src->object_identifier.instance;
         dest->object_identifier.type = src->object_identifier.type;
+        dest->property_array_index = src->property_array_index;
         status = true;
     }
 
diff --git a/src/bacnet/basic/object/loop.c b/src/bacnet/basic/object/loop.c
index 6a7d202c..39222788 100644
--- a/src/bacnet/basic/object/loop.c
+++ b/src/bacnet/basic/object/loop.c
@@ -1432,13 +1432,12 @@ bool Loop_COV_Increment_Set(uint32_t object_instance, float value)
 int Loop_Read_Property(BACNET_READ_PROPERTY_DATA *rpdata)
 {
     int apdu_len = 0; /* return value */
-    BACNET_BIT_STRING bit_string;
-    BACNET_CHARACTER_STRING char_string;
-    BACNET_UNSIGNED_INTEGER unsigned_value;
-    BACNET_OBJECT_PROPERTY_REFERENCE reference_value;
-    float real_value;
+    BACNET_BIT_STRING bit_string = { 0 };
+    BACNET_CHARACTER_STRING char_string = { 0 };
+    BACNET_UNSIGNED_INTEGER unsigned_value = 0;
+    BACNET_OBJECT_PROPERTY_REFERENCE reference_value = { 0 };
+    float real_value = 0.0f;
     uint8_t *apdu = NULL;
-
     uint32_t enum_value = 0;
     bool state = false;