diff --git a/CHANGELOG.md b/CHANGELOG.md
index 76c1c9d1..c818aac3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ### Unreleased
 ### Added
+- Added missing VSIM argument (#1582)
+
 ### Changed
 ### Fixed
 
diff --git a/src/ClientContextInterface.php b/src/ClientContextInterface.php
index 72d43b4f..144c2561 100644
--- a/src/ClientContextInterface.php
+++ b/src/ClientContextInterface.php
@@ -349,7 +349,7 @@ use Predis\Command\Redis\VADD;
  * @method $this vrandmember(string $key, int $count = null)
  * @method $this vrem(string $key, string $elem)
  * @method $this vsetattr(string $key, string $elem, string|array $attributes)
- * @method $this vsim(string $key, string|array $vectorOrElem, bool $isElem = false, bool $withScores = false, int $count = null, int $ef = null, string $filter = null, int $filterEf = null, bool $truth = false, bool $noThread = false)
+ * @method $this vsim(string $key, string|array $vectorOrElem, bool $isElem = false, bool $withScores = false, int $count = null, float $epsilon = null, int $ef = null, string $filter = null, int $filterEf = null, bool $truth = false, bool $noThread = false)
  * @method $this watch($key)
  * @method $this eval($script, $numkeys, $keyOrArg1 = null, $keyOrArgN = null)
  * @method $this eval_ro(string $script, array $keys, ...$argument)
diff --git a/src/ClientInterface.php b/src/ClientInterface.php
index 1c52d1d2..037a08b8 100644
--- a/src/ClientInterface.php
+++ b/src/ClientInterface.php
@@ -360,7 +360,7 @@ use Predis\Response\Status;
  * @method array|null        vlinks(string $key, string $elem, bool $withScores = false)
  * @method string|array|null vrandmember(string $key, int $count = null)
  * @method bool              vrem(string $key, string $elem)
- * @method array             vsim(string $key, string|array $vectorOrElem, bool $isElem = false, bool $withScores = false, int $count = null, int $ef = null, string $filter = null, int $filterEf = null, bool $truth = false, bool $noThread = false)
+ * @method array             vsim(string $key, string|array $vectorOrElem, bool $isElem = false, bool $withScores = false, int $count = null, float $epsilon = null, int $ef = null, string $filter = null, int $filterEf = null, bool $truth = false, bool $noThread = false)
  * @method bool              vsetattr(string $key, string $elem, string|array $attributes)
  * @method array             waitaof(int $numLocal, int $numReplicas, int $timeout)
  * @method mixed             watch(string[]|string $keyOrKeys)
diff --git a/src/Command/Redis/VSIM.php b/src/Command/Redis/VSIM.php
index cca6e300..371bbc4e 100644
--- a/src/Command/Redis/VSIM.php
+++ b/src/Command/Redis/VSIM.php
@@ -51,22 +51,26 @@ class VSIM extends RedisCommand
         }
 
         if (isset($arguments[5])) {
-            array_push($processedArguments, 'EF', $arguments[5]);
+            array_push($processedArguments, 'EPSILON', $arguments[5]);
         }
 
         if (isset($arguments[6])) {
-            array_push($processedArguments, 'FILTER', $arguments[6]);
+            array_push($processedArguments, 'EF', $arguments[6]);
         }
 
         if (isset($arguments[7])) {
-            array_push($processedArguments, 'FILTER-EF', $arguments[7]);
+            array_push($processedArguments, 'FILTER', $arguments[7]);
         }
 
-        if (isset($arguments[8]) && false !== $arguments[8]) {
-            $processedArguments[] = 'TRUTH';
+        if (isset($arguments[8])) {
+            array_push($processedArguments, 'FILTER-EF', $arguments[8]);
         }
 
         if (isset($arguments[9]) && false !== $arguments[9]) {
+            $processedArguments[] = 'TRUTH';
+        }
+
+        if (isset($arguments[10]) && false !== $arguments[10]) {
             $processedArguments[] = 'NOTHREAD';
         }
 
diff --git a/tests/Predis/Command/Redis/VSIM_Test.php b/tests/Predis/Command/Redis/VSIM_Test.php
index 45477780..8378535c 100644
--- a/tests/Predis/Command/Redis/VSIM_Test.php
+++ b/tests/Predis/Command/Redis/VSIM_Test.php
@@ -123,11 +123,11 @@ class VSIM_Test extends PredisCommandTestCase
         $this->assertTrue($redis->vsetattr('key', 'elem3', ['years' => 16]));
         $this->assertTrue($redis->vsetattr('key', 'elem1', ['years' => 19]));
 
-        // with Filter expression
+        // with Filter expression and Epsilon
         $this->assertSame(
             ['elem2', 'elem1'],
             $redis->vsim(
-                'key', [0.9, 0.8, 0.7, 0.6], false, false, null, null,
+                'key', [0.9, 0.8, 0.7, 0.6], false, false, null, 0.2, null,
                 '.years >= 18'
             )
         );
@@ -192,11 +192,11 @@ class VSIM_Test extends PredisCommandTestCase
         $this->assertTrue($redis->vsetattr('key', 'elem3', ['years' => 16]));
         $this->assertTrue($redis->vsetattr('key', 'elem1', ['years' => 19]));
 
-        // with Filter expression
+        // with Filter expression and Epsilon
         $this->assertSame(
             ['elem2', 'elem1'],
             $redis->vsim(
-                'key', [0.9, 0.8, 0.7, 0.6], false, false, null, null,
+                'key', [0.9, 0.8, 0.7, 0.6], false, false, null, 0.2, null,
                 '.years >= 18'
             )
         );
@@ -225,24 +225,28 @@ class VSIM_Test extends PredisCommandTestCase
                 ['key', 'elem1', true, false, 10],
                 ['key', 'ELE', 'elem1', 'COUNT', 10],
             ],
+            'with EPSILON' => [
+                ['key', 'elem1', true, false, null, 0.01],
+                ['key', 'ELE', 'elem1', 'EPSILON', 0.01],
+            ],
             'with EF' => [
-                ['key', 'elem1', true, false, null, 50],
+                ['key', 'elem1', true, false, null, null, 50],
                 ['key', 'ELE', 'elem1', 'EF', 50],
             ],
             'with FILTER' => [
-                ['key', 'elem1', true, false, null, null, '.year >= 1980 and .rating > 7'],
+                ['key', 'elem1', true, false, null, null, null, '.year >= 1980 and .rating > 7'],
                 ['key', 'ELE', 'elem1', 'FILTER', '.year >= 1980 and .rating > 7'],
             ],
             'with FILTER-EF' => [
-                ['key', 'elem1', true, false, null, null, null, 50],
+                ['key', 'elem1', true, false, null, null, null, null, 50],
                 ['key', 'ELE', 'elem1', 'FILTER-EF', 50],
             ],
             'with TRUTH' => [
-                ['key', 'elem1', true, false, null, null, null, null, true],
+                ['key', 'elem1', true, false, null, null, null, null, null, true],
                 ['key', 'ELE', 'elem1', 'TRUTH'],
             ],
             'with NOTHREAD' => [
-                ['key', 'elem1', true, false, null, null, null, null, false, true],
+                ['key', 'elem1', true, false, null, null, null, null, null, false, true],
                 ['key', 'ELE', 'elem1', 'NOTHREAD'],
             ],
         ];