diff --git a/src/main/java/com/taskadapter/redmineapi/internal/URIConfigurator.java b/src/main/java/com/taskadapter/redmineapi/internal/URIConfigurator.java
index 6565255b..d85f960d 100644
--- a/src/main/java/com/taskadapter/redmineapi/internal/URIConfigurator.java
+++ b/src/main/java/com/taskadapter/redmineapi/internal/URIConfigurator.java
@@ -120,7 +120,7 @@ static Collection<? extends RequestParam> distinct(Collection<? extends RequestP
         return origParams
                 .stream()
                 .filter(Objects::nonNull)
-                .collect(Collectors.toMap(RequestParam::getName, a -> a, (s1, s2) -> s1))
+                .collect(Collectors.toMap(RequestParam::getValue, a -> a, (s1, s2) -> s1))
                 .values();
     }
 
diff --git a/src/test/java/com/taskadapter/redmineapi/internal/URIConfiguratorTest.java b/src/test/java/com/taskadapter/redmineapi/internal/URIConfiguratorTest.java
index 41c9e0d2..e4ed5102 100644
--- a/src/test/java/com/taskadapter/redmineapi/internal/URIConfiguratorTest.java
+++ b/src/test/java/com/taskadapter/redmineapi/internal/URIConfiguratorTest.java
@@ -28,9 +28,9 @@ public void testDistinctWithDuplicateParams() {
     }
 
     @Test
-    public void testDistinctWithSimilarNames() {
+    public void testDistinctWithSimilarNamesButDifferentValues() {
         List<RequestParam> params = Arrays.asList(param2, param2WithDifferentValue);
-        assertThat(URIConfigurator.distinct(params)).containsOnly(param2);
+        assertThat(URIConfigurator.distinct(params)).containsOnly(param2, param2WithDifferentValue);
     }
 
     @Test