diff --git a/src/main/java/org/springframework/data/repository/util/QueryExecutionConverters.java b/src/main/java/org/springframework/data/repository/util/QueryExecutionConverters.java
index 680355093..bb038bc45 100644
--- a/src/main/java/org/springframework/data/repository/util/QueryExecutionConverters.java
+++ b/src/main/java/org/springframework/data/repository/util/QueryExecutionConverters.java
@@ -699,6 +699,10 @@ public abstract class QueryExecutionConverters {
 		@Override
 		public boolean matches(TypeDescriptor sourceType, TypeDescriptor targetType) {
 
+			if (sourceType.isAssignableTo(targetType)) {
+				return false;
+			}
+
 			if (!Iterable.class.isAssignableFrom(sourceType.getType())) {
 				return false;
 			}
diff --git a/src/test/java/org/springframework/data/repository/util/QueryExecutionConvertersUnitTests.java b/src/test/java/org/springframework/data/repository/util/QueryExecutionConvertersUnitTests.java
index 4c8dc2825..61db08297 100755
--- a/src/test/java/org/springframework/data/repository/util/QueryExecutionConvertersUnitTests.java
+++ b/src/test/java/org/springframework/data/repository/util/QueryExecutionConvertersUnitTests.java
@@ -355,6 +355,15 @@ public class QueryExecutionConvertersUnitTests {
 				.containsExactly("foo");
 	}
 
+	@Test // DATACMNS-1484
+	public void doesNotConvertCollectionToStreamableIfReturnTypeIsIterable() {
+
+		List<String> source = Arrays.asList("1", "2");
+
+		assertThat(conversionService.convert(source, Iterable.class)).isSameAs(source);
+
+	}
+
 	interface Sample {
 
 		Page<String> pages();