diff --git a/src/main/java/io/lettuce/core/RedisVectorSetCommandBuilder.java b/src/main/java/io/lettuce/core/RedisVectorSetCommandBuilder.java
index 0cfff73d99..8f5f05105f 100644
--- a/src/main/java/io/lettuce/core/RedisVectorSetCommandBuilder.java
+++ b/src/main/java/io/lettuce/core/RedisVectorSetCommandBuilder.java
@@ -392,13 +392,9 @@ public Command<K, V, List<V>> vsim(K key, VSimArgs vSimArgs, Double[] vectors) {
 
         CommandArgs<K, V> args = new CommandArgs<>(codec).addKey(key);
 
-        if (vectors.length > 1) {
-            args.add(CommandKeyword.VALUES);
-            args.add(vectors.length);
-            Arrays.stream(vectors).forEach(args::add);
-        } else {
-            args.add(vectors[0]);
-        }
+        args.add(CommandKeyword.VALUES);
+        args.add(vectors.length);
+        Arrays.stream(vectors).forEach(args::add);
 
         if (vSimArgs != null) {
             vSimArgs.build(args);
@@ -472,13 +468,9 @@ public Command<K, V, Map<V, Double>> vsimWithScore(K key, VSimArgs vSimArgs, Dou
 
         CommandArgs<K, V> args = new CommandArgs<>(codec).addKey(key);
 
-        if (vectors.length > 1) {
-            args.add(CommandKeyword.VALUES);
-            args.add(vectors.length);
-            Arrays.stream(vectors).forEach(args::add);
-        } else {
-            args.add(vectors[0]);
-        }
+        args.add(CommandKeyword.VALUES);
+        args.add(vectors.length);
+        Arrays.stream(vectors).forEach(args::add);
 
         args.add(WITHSCORES);
 
@@ -527,13 +519,9 @@ public Command<K, V, Map<V, VSimScoreAttribs>> vsimWithScoreWithAttribs(K key, V
 
         CommandArgs<K, V> args = new CommandArgs<>(codec).addKey(key);
 
-        if (vectors.length > 1) {
-            args.add(CommandKeyword.VALUES);
-            args.add(vectors.length);
-            Arrays.stream(vectors).forEach(args::add);
-        } else {
-            args.add(vectors[0]);
-        }
+        args.add(CommandKeyword.VALUES);
+        args.add(vectors.length);
+        Arrays.stream(vectors).forEach(args::add);
 
         args.add(WITHSCORES).add(WITHATTRIBS);
 
diff --git a/src/test/java/io/lettuce/core/RedisVectorSetCommandBuilderUnitTests.java b/src/test/java/io/lettuce/core/RedisVectorSetCommandBuilderUnitTests.java
index 4fd3fc72d1..3aa9e1fef5 100644
--- a/src/test/java/io/lettuce/core/RedisVectorSetCommandBuilderUnitTests.java
+++ b/src/test/java/io/lettuce/core/RedisVectorSetCommandBuilderUnitTests.java
@@ -328,6 +328,39 @@ void shouldCorrectlyConstructVsimWithArgsAndScores() {
                         + "WITHSCORES\r\n" + "$5\r\n" + "COUNT\r\n" + "$1\r\n" + "5\r\n" + "$5\r\n" + "TRUTH\r\n");
     }
 
+    @Test
+    void shouldCorrectlyConstructVsimWithOneVector() {
+        Command<String, String, List<String>> command = builder.vsim(KEY, new Double[] { 0.1d });
+        ByteBuf buf = Unpooled.directBuffer();
+        command.encode(buf);
+
+        assertThat(buf.toString(StandardCharsets.UTF_8)).isEqualTo("*5\r\n" + "$4\r\n" + "VSIM\r\n" + "$10\r\n"
+                + "vector:set\r\n" + "$6\r\n" + "VALUES\r\n" + "$1\r\n" + "1\r\n" + "$3\r\n" + "0.1\r\n");
+    }
+
+    @Test
+    void shouldCorrectlyConstructVsimWithScoresWithOneVector() {
+        Command<String, String, Map<String, Double>> command = builder.vsimWithScore(KEY, new Double[] { 0.1d });
+        ByteBuf buf = Unpooled.directBuffer();
+        command.encode(buf);
+
+        assertThat(buf.toString(StandardCharsets.UTF_8))
+                .isEqualTo("*6\r\n" + "$4\r\n" + "VSIM\r\n" + "$10\r\n" + "vector:set\r\n" + "$6\r\n" + "VALUES\r\n" + "$1\r\n"
+                        + "1\r\n" + "$3\r\n" + "0.1\r\n" + "$10\r\n" + "WITHSCORES\r\n");
+    }
+
+    @Test
+    void shouldCorrectlyConstructVsimWithScoreWithAttribsWithOneVector() {
+        Command<String, String, Map<String, VSimScoreAttribs>> command = builder.vsimWithScoreWithAttribs(KEY,
+                new Double[] { 0.1d });
+        ByteBuf buf = Unpooled.directBuffer();
+        command.encode(buf);
+
+        assertThat(buf.toString(StandardCharsets.UTF_8))
+                .isEqualTo("*7\r\n" + "$4\r\n" + "VSIM\r\n" + "$10\r\n" + "vector:set\r\n" + "$6\r\n" + "VALUES\r\n" + "$1\r\n"
+                        + "1\r\n" + "$3\r\n" + "0.1\r\n" + "$10\r\n" + "WITHSCORES\r\n" + "$11\r\n" + "WITHATTRIBS\r\n");
+    }
+
     @Test
     void epsilonBelowZero_throws() {
         VSimArgs args = new VSimArgs();