diff --git a/python/src/com/jetbrains/python/codeInsight/PySubstitutionChunkReference.java b/python/src/com/jetbrains/python/codeInsight/PySubstitutionChunkReference.java
index 9cfe433ae397..e66921b4ad00 100644
--- a/python/src/com/jetbrains/python/codeInsight/PySubstitutionChunkReference.java
+++ b/python/src/com/jetbrains/python/codeInsight/PySubstitutionChunkReference.java
@@ -321,14 +321,14 @@ public class PySubstitutionChunkReference extends PsiReferenceBase<PyStringLiter
     for (PyExpression element : elements) {
       if (element instanceof PyStarExpression) {
         if (!LanguageLevel.forElement(element).isAtLeast(LanguageLevel.PYTHON35)) continue;
-        final PyExpression underStarExpr = ((PyStarExpression)element).getExpression();
+        final PyExpression underStarExpr = PyPsiUtils.flattenParens(((PyStarExpression)element).getExpression());
         if (PyUtil.instanceOf(underStarExpr, PyListLiteralExpression.class, PyTupleExpression.class)) {
           PyExpression[] subsequenсeElements = getElementsFromListOrTuple(underStarExpr);
           int subsequenceElementIndex = index - seenElementsNumber;
           if (subsequenceElementIndex < subsequenсeElements.length) {
             return Ref.create(subsequenсeElements[subsequenceElementIndex]);
           }
-          if (noElementsForSure) noElementsForSure = Arrays.stream(subsequenсeElements).anyMatch(it -> it instanceof PyStarExpression);
+          if (noElementsForSure) noElementsForSure = Arrays.stream(subsequenсeElements).noneMatch(it -> it instanceof PyStarExpression);
           seenElementsNumber += subsequenсeElements.length;
         }
         else {
diff --git a/python/testData/inspections/PyStringFormatInspection/PackedListInsideList.py b/python/testData/inspections/PyStringFormatInspection/PackedListInsideList.py
index 0480d0e0af22..ef083e68842e 100644
--- a/python/testData/inspections/PyStringFormatInspection/PackedListInsideList.py
+++ b/python/testData/inspections/PyStringFormatInspection/PackedListInsideList.py
@@ -1,2 +1,2 @@
 "{3}".format(*[1, 2, *[3, 4]])
-"{4}".format(*[1, 2, *[3, 4]])
\ No newline at end of file
+<warning descr="Too few arguments for format string">"{4}"</warning>.format(*[1, 2, *[3, 4]])
\ No newline at end of file
diff --git a/python/testData/inspections/PyStringFormatInspection/PackedListInsideTuple.py b/python/testData/inspections/PyStringFormatInspection/PackedListInsideTuple.py
new file mode 100644
index 000000000000..b59b9b532997
--- /dev/null
+++ b/python/testData/inspections/PyStringFormatInspection/PackedListInsideTuple.py
@@ -0,0 +1,2 @@
+"{2}".format(*(1, 2, *[3, 4]))
+<warning descr="Too few arguments for format string">"{4}"</warning>.format(*(1, 2, *[3, 4]))
\ No newline at end of file
diff --git a/python/testData/inspections/PyStringFormatInspection/PackedTupleInsideList.py b/python/testData/inspections/PyStringFormatInspection/PackedTupleInsideList.py
index 839ed648acf0..558a23337f46 100644
--- a/python/testData/inspections/PyStringFormatInspection/PackedTupleInsideList.py
+++ b/python/testData/inspections/PyStringFormatInspection/PackedTupleInsideList.py
@@ -1,2 +1,2 @@
 "{3}".format(*[1, 2, *(3, 4)])
-"{4}".format(*[1, 2, *(3, 4)])
\ No newline at end of file
+<warning descr="Too few arguments for format string">"{4}"</warning>.format(*[1, 2, *(3, 4)])
\ No newline at end of file
diff --git a/python/testData/inspections/PyStringFormatInspection/PackedTupleInsideTuple.py b/python/testData/inspections/PyStringFormatInspection/PackedTupleInsideTuple.py
index ba38f6cc248b..9727e7906853 100644
--- a/python/testData/inspections/PyStringFormatInspection/PackedTupleInsideTuple.py
+++ b/python/testData/inspections/PyStringFormatInspection/PackedTupleInsideTuple.py
@@ -1,2 +1,2 @@
 "{3}".format(*(1, 2, *(3, 4)))
-"{4}".format(*(1, 2, *(3, 4)))
\ No newline at end of file
+<warning descr="Too few arguments for format string">"{4}"</warning>.format(*(1, 2, *(3, 4)))
\ No newline at end of file
diff --git a/python/testSrc/com/jetbrains/python/inspections/Py3StringFormatInspectionTest.java b/python/testSrc/com/jetbrains/python/inspections/Py3StringFormatInspectionTest.java
index df95fd0c0280..ef2b4ebabd64 100644
--- a/python/testSrc/com/jetbrains/python/inspections/Py3StringFormatInspectionTest.java
+++ b/python/testSrc/com/jetbrains/python/inspections/Py3StringFormatInspectionTest.java
@@ -65,6 +65,9 @@ public class Py3StringFormatInspectionTest extends PyTestCase {
     runWithLanguageLevel(LanguageLevel.PYTHON35, this::doTest);
   }
 
+  public void testPackedListInsideTuple() {
+    runWithLanguageLevel(LanguageLevel.PYTHON35, this::doTest);
+  }
 
   private void doTest() {
     myFixture.configureByFile(TEST_DIRECTORY + getTestName(false) + ".py");