diff --git a/idea/src/org/jetbrains/kotlin/idea/intentions/ConvertIfWithThrowToAssertIntention.kt b/idea/src/org/jetbrains/kotlin/idea/intentions/ConvertIfWithThrowToAssertIntention.kt
index 7a6d02b8e4e..8fbd86f72db 100644
--- a/idea/src/org/jetbrains/kotlin/idea/intentions/ConvertIfWithThrowToAssertIntention.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/intentions/ConvertIfWithThrowToAssertIntention.kt
@@ -60,7 +60,7 @@ public class ConvertIfWithThrowToAssertIntention : SelfTargetingOffsetIndependen
 
         val arg = thrownExpr.getValueArguments().singleOrNull()?.getArgumentExpression()
         val assertExpr = if (arg != null && !arg.isNullExpression())
-            psiFactory.createExpressionByPattern("kotlin.assert($0, $1)", newCondition, arg)
+            psiFactory.createExpressionByPattern("kotlin.assert($0) {$1}", newCondition, arg)
         else
             psiFactory.createExpressionByPattern("kotlin.assert($0)", newCondition)
 
diff --git a/idea/testData/intentions/convertIfWithThrowToAssert/assertOverloaded.kt.after b/idea/testData/intentions/convertIfWithThrowToAssert/assertOverloaded.kt.after
index c1072aac021..1bc45cdd6e9 100644
--- a/idea/testData/intentions/convertIfWithThrowToAssert/assertOverloaded.kt.after
+++ b/idea/testData/intentions/convertIfWithThrowToAssert/assertOverloaded.kt.after
@@ -1,6 +1,6 @@
 // WITH_RUNTIME
 fun foo() {
-    kotlin.assert(!true, "text")
+    kotlin.assert(!true) { "text" }
 }
 
 fun assert(x: Boolean, y: Any) {}
\ No newline at end of file
diff --git a/idea/testData/intentions/convertIfWithThrowToAssert/assertOverloaded2.kt.after b/idea/testData/intentions/convertIfWithThrowToAssert/assertOverloaded2.kt.after
index 07789087d6f..c07313361e0 100644
--- a/idea/testData/intentions/convertIfWithThrowToAssert/assertOverloaded2.kt.after
+++ b/idea/testData/intentions/convertIfWithThrowToAssert/assertOverloaded2.kt.after
@@ -2,7 +2,7 @@
 package foo.kotlin
 
 fun foo() {
-    kotlin.assert(!true, "text")
+    kotlin.assert(!true) { "text" }
 }
 
 fun assert(x: Boolean, y: Any) {}
\ No newline at end of file
diff --git a/idea/testData/intentions/convertIfWithThrowToAssert/booleanCondition.kt.after b/idea/testData/intentions/convertIfWithThrowToAssert/booleanCondition.kt.after
index 274cebfc4c5..83d417230ac 100644
--- a/idea/testData/intentions/convertIfWithThrowToAssert/booleanCondition.kt.after
+++ b/idea/testData/intentions/convertIfWithThrowToAssert/booleanCondition.kt.after
@@ -1,5 +1,5 @@
 // WITH_RUNTIME
 fun foo() {
     val x = true
-    assert(!(x && false), "text")
+    assert(!(x && false)) { "text" }
 }
\ No newline at end of file
diff --git a/idea/testData/intentions/convertIfWithThrowToAssert/dotQualifiedThrow.kt.after b/idea/testData/intentions/convertIfWithThrowToAssert/dotQualifiedThrow.kt.after
index 03ec5eb47c9..14c16339aca 100644
--- a/idea/testData/intentions/convertIfWithThrowToAssert/dotQualifiedThrow.kt.after
+++ b/idea/testData/intentions/convertIfWithThrowToAssert/dotQualifiedThrow.kt.after
@@ -1,4 +1,4 @@
 // WITH_RUNTIME
 fun foo() {
-    assert(!true, "text")
+    assert(!true) { "text" }
 }
\ No newline at end of file
diff --git a/idea/testData/intentions/convertIfWithThrowToAssert/simpleConvert.kt.after b/idea/testData/intentions/convertIfWithThrowToAssert/simpleConvert.kt.after
index 03ec5eb47c9..14c16339aca 100644
--- a/idea/testData/intentions/convertIfWithThrowToAssert/simpleConvert.kt.after
+++ b/idea/testData/intentions/convertIfWithThrowToAssert/simpleConvert.kt.after
@@ -1,4 +1,4 @@
 // WITH_RUNTIME
 fun foo() {
-    assert(!true, "text")
+    assert(!true) { "text" }
 }
\ No newline at end of file
diff --git a/idea/testData/intentions/convertIfWithThrowToAssert/simplifiedCondition.kt.after b/idea/testData/intentions/convertIfWithThrowToAssert/simplifiedCondition.kt.after
index ad7f9b3e65c..8dc94444b77 100644
--- a/idea/testData/intentions/convertIfWithThrowToAssert/simplifiedCondition.kt.after
+++ b/idea/testData/intentions/convertIfWithThrowToAssert/simplifiedCondition.kt.after
@@ -1,4 +1,4 @@
 // WITH_RUNTIME
 fun foo() {
-    assert(1 != 0, "text")
+    assert(1 != 0) { "text" }
 }
\ No newline at end of file