diff --git a/package.xml b/package.xml
index 8504e4697f..ec5302a08a 100644
--- a/package.xml
+++ b/package.xml
@@ -68,6 +68,8 @@ http://pear.php.net/dtd/package-2.0.xsd">
   - Fixed bug #3157 : PSR2.ControlStructures.SwitchDeclaration.BreakIndent false positive when case keyword is not indented
   - Fixed bug #3165 : Squiz.PHP.DisallowComparisonAssignment false positive when comparison inside closure
   - Fixed bug #3167 : Generic.WhiteSpace.ScopeIndent false positive when using PHP 8.0 constructor property promotion
+  - Fixed bug #3170 : Squiz.WhiteSpace.OperatorSpacing false positive when using negation with string concat
+    -- This also fixes the same issue in the PSR12.Operators.OperatorSpacing sniff
  </notes>
  <contents>
   <dir name="/">
diff --git a/src/Standards/Squiz/Sniffs/WhiteSpace/OperatorSpacingSniff.php b/src/Standards/Squiz/Sniffs/WhiteSpace/OperatorSpacingSniff.php
index ee44545aea..2627d10d98 100644
--- a/src/Standards/Squiz/Sniffs/WhiteSpace/OperatorSpacingSniff.php
+++ b/src/Standards/Squiz/Sniffs/WhiteSpace/OperatorSpacingSniff.php
@@ -87,15 +87,16 @@ public function register()
 
         // Trying to use a negative value; eg. myFunction($var, -2).
         $this->nonOperandTokens += [
-            T_COMMA               => T_COMMA,
-            T_OPEN_PARENTHESIS    => T_OPEN_PARENTHESIS,
-            T_OPEN_SQUARE_BRACKET => T_OPEN_SQUARE_BRACKET,
-            T_OPEN_SHORT_ARRAY    => T_OPEN_SHORT_ARRAY,
+            T_CASE                => T_CASE,
             T_COLON               => T_COLON,
-            T_INLINE_THEN         => T_INLINE_THEN,
+            T_COMMA               => T_COMMA,
             T_INLINE_ELSE         => T_INLINE_ELSE,
-            T_CASE                => T_CASE,
+            T_INLINE_THEN         => T_INLINE_THEN,
             T_OPEN_CURLY_BRACKET  => T_OPEN_CURLY_BRACKET,
+            T_OPEN_PARENTHESIS    => T_OPEN_PARENTHESIS,
+            T_OPEN_SHORT_ARRAY    => T_OPEN_SHORT_ARRAY,
+            T_OPEN_SQUARE_BRACKET => T_OPEN_SQUARE_BRACKET,
+            T_STRING_CONCAT       => T_STRING_CONCAT,
         ];
 
         // Casting a negative value; eg. (array) -$a.
diff --git a/src/Standards/Squiz/Tests/WhiteSpace/OperatorSpacingUnitTest.inc b/src/Standards/Squiz/Tests/WhiteSpace/OperatorSpacingUnitTest.inc
index 82d4af15be..f89cf08d5c 100644
--- a/src/Standards/Squiz/Tests/WhiteSpace/OperatorSpacingUnitTest.inc
+++ b/src/Standards/Squiz/Tests/WhiteSpace/OperatorSpacingUnitTest.inc
@@ -472,5 +472,10 @@ $fn = fn ($boo =+1) => $boo;
 
 $fn = static fn(DateTime $a, DateTime $b): int => -($a->getTimestamp() <=> $b->getTimestamp());
 
+$a = 'a '.-MY_CONSTANT;
+$a = 'a '.-$b;
+$a = 'a '.- MY_CONSTANT;
+$a = 'a '.- $b;
+
 /* Intentional parse error. This has to be the last test in the file. */
 $a = 10 +
diff --git a/src/Standards/Squiz/Tests/WhiteSpace/OperatorSpacingUnitTest.inc.fixed b/src/Standards/Squiz/Tests/WhiteSpace/OperatorSpacingUnitTest.inc.fixed
index ee4060bc11..138616e752 100644
--- a/src/Standards/Squiz/Tests/WhiteSpace/OperatorSpacingUnitTest.inc.fixed
+++ b/src/Standards/Squiz/Tests/WhiteSpace/OperatorSpacingUnitTest.inc.fixed
@@ -466,5 +466,10 @@ $fn = fn ($boo =+1) => $boo;
 
 $fn = static fn(DateTime $a, DateTime $b): int => -($a->getTimestamp() <=> $b->getTimestamp());
 
+$a = 'a '.-MY_CONSTANT;
+$a = 'a '.-$b;
+$a = 'a '.- MY_CONSTANT;
+$a = 'a '.- $b;
+
 /* Intentional parse error. This has to be the last test in the file. */
 $a = 10 +