diff --git a/libraries/stdlib/src/generated/_Numeric.kt b/libraries/stdlib/src/generated/_Numeric.kt
index df318f6ca04..d5c21a19a87 100644
--- a/libraries/stdlib/src/generated/_Numeric.kt
+++ b/libraries/stdlib/src/generated/_Numeric.kt
@@ -421,7 +421,7 @@ public fun IntArray.sum(): Int {
 platformName("sumOfLong")
 public fun Iterable<Long>.sum(): Long {
     val iterator = iterator()
-    var sum: Long = 0
+    var sum: Long = 0L
     while (iterator.hasNext()) {
         sum += iterator.next()
     }
@@ -434,7 +434,7 @@ public fun Iterable<Long>.sum(): Long {
 platformName("sumOfLong")
 public fun Sequence<Long>.sum(): Long {
     val iterator = iterator()
-    var sum: Long = 0
+    var sum: Long = 0L
     while (iterator.hasNext()) {
         sum += iterator.next()
     }
@@ -447,7 +447,7 @@ public fun Sequence<Long>.sum(): Long {
 platformName("sumOfLong")
 public fun Array<out Long>.sum(): Long {
     val iterator = iterator()
-    var sum: Long = 0
+    var sum: Long = 0L
     while (iterator.hasNext()) {
         sum += iterator.next()
     }
@@ -459,7 +459,7 @@ public fun Array<out Long>.sum(): Long {
  */
 public fun LongArray.sum(): Long {
     val iterator = iterator()
-    var sum: Long = 0
+    var sum: Long = 0L
     while (iterator.hasNext()) {
         sum += iterator.next()
     }
diff --git a/libraries/stdlib/src/generated/_Ranges.kt b/libraries/stdlib/src/generated/_Ranges.kt
index 0b283ce0a43..5d68386518e 100644
--- a/libraries/stdlib/src/generated/_Ranges.kt
+++ b/libraries/stdlib/src/generated/_Ranges.kt
@@ -98,7 +98,7 @@ public fun IntRange.reversed(): IntProgression {
  * Returns a progression that goes over this range in reverse direction.
  */
 public fun LongRange.reversed(): LongProgression {
-    return LongProgression(end, start, -1.toLong())
+    return LongProgression(end, start, -1L)
 }
 
 /**
diff --git a/libraries/tools/kotlin-stdlib-gen/src/templates/Engine.kt b/libraries/tools/kotlin-stdlib-gen/src/templates/Engine.kt
index a27564d565e..f53107a214d 100644
--- a/libraries/tools/kotlin-stdlib-gen/src/templates/Engine.kt
+++ b/libraries/tools/kotlin-stdlib-gen/src/templates/Engine.kt
@@ -206,18 +206,19 @@ class GenericFunction(val signature: String, val keyword: String = "fun") : Comp
                                   "ZERO" -> when (primitive) {
                                       PrimitiveType.Double -> "0.0"
                                       PrimitiveType.Float -> "0.0f"
+                                      PrimitiveType.Long -> "0L"
                                       else -> "0"
                                   }
                                   "ONE" -> when (primitive) {
                                       PrimitiveType.Double -> "1.0"
                                       PrimitiveType.Float -> "1.0f"
-                                      PrimitiveType.Long -> "1.toLong()"
+                                      PrimitiveType.Long -> "1L"
                                       else -> "1"
                                   }
                                   "-ONE" -> when (primitive) {
                                       PrimitiveType.Double -> "-1.0"
                                       PrimitiveType.Float -> "-1.0f"
-                                      PrimitiveType.Long -> "-1.toLong()"
+                                      PrimitiveType.Long -> "-1L"
                                       else -> "-1"
                                   }
                                   "TCollection" -> {