diff --git a/scalafix/input/src/main/scala/fix/CopyToBufferSrc.scala b/scalafix/input/src/main/scala/fix/CopyToBufferSrc.scala
index e995f9dc..1650bc2e 100644
--- a/scalafix/input/src/main/scala/fix/CopyToBufferSrc.scala
+++ b/scalafix/input/src/main/scala/fix/CopyToBufferSrc.scala
@@ -1,5 +1,5 @@
 /*
-rule = "scala:fix.Scalacollectioncompat_NewCollections"
+rule = "scala:fix.Scalacollectioncompat_newcollections"
  */
 package fix
 
diff --git a/scalafix/input/src/main/scala/fix/FoldSrc.scala b/scalafix/input/src/main/scala/fix/FoldSrc.scala
index f99077dc..2d259110 100644
--- a/scalafix/input/src/main/scala/fix/FoldSrc.scala
+++ b/scalafix/input/src/main/scala/fix/FoldSrc.scala
@@ -1,5 +1,5 @@
 /*
-rule = "scala:fix.Scalacollectioncompat_NewCollections"
+rule = "scala:fix.Scalacollectioncompat_newcollections"
  */
 package fix
 
diff --git a/scalafix/input/src/main/scala/fix/RetainSrc.scala b/scalafix/input/src/main/scala/fix/RetainSrc.scala
index 056dc831..108e859e 100644
--- a/scalafix/input/src/main/scala/fix/RetainSrc.scala
+++ b/scalafix/input/src/main/scala/fix/RetainSrc.scala
@@ -1,5 +1,5 @@
 /*
-rule = "scala:fix.Scalacollectioncompat_NewCollections"
+rule = "scala:fix.Scalacollectioncompat_newcollections"
  */
 package fix
 
diff --git a/scalafix/input/src/main/scala/fix/StreamSrc.scala b/scalafix/input/src/main/scala/fix/StreamSrc.scala
index eb2c58b8..70d2df9e 100644
--- a/scalafix/input/src/main/scala/fix/StreamSrc.scala
+++ b/scalafix/input/src/main/scala/fix/StreamSrc.scala
@@ -1,5 +1,5 @@
 /*
-rule = "scala:fix.Scalacollectioncompat_NewCollections"
+rule = "scala:fix.Scalacollectioncompat_newcollections"
  */
 package fix
 
diff --git a/scalafix/input/src/main/scala/fix/TraversableSrc.scala b/scalafix/input/src/main/scala/fix/TraversableSrc.scala
index 2b0c6645..ca2a3c57 100644
--- a/scalafix/input/src/main/scala/fix/TraversableSrc.scala
+++ b/scalafix/input/src/main/scala/fix/TraversableSrc.scala
@@ -1,5 +1,5 @@
 /*
-rule = "scala:fix.Scalacollectioncompat_NewCollections"
+rule = "scala:fix.Scalacollectioncompat_newcollections"
  */
 package fix
 
diff --git a/scalafix/input/src/main/scala/fix/TupleNZippedSrc.scala b/scalafix/input/src/main/scala/fix/TupleNZippedSrc.scala
index bd709d7a..e47ff35e 100644
--- a/scalafix/input/src/main/scala/fix/TupleNZippedSrc.scala
+++ b/scalafix/input/src/main/scala/fix/TupleNZippedSrc.scala
@@ -1,5 +1,5 @@
 /*
-rule = "scala:fix.Scalacollectioncompat_NewCollections"
+rule = "scala:fix.Scalacollectioncompat_newcollections"
  */
 package fix
 
diff --git a/scalafix/rules/src/main/scala/fix/Scalacollectioncompat_NewCollections.scala b/scalafix/rules/src/main/scala/fix/Scalacollectioncompat_newcollections.scala
similarity index 97%
rename from scalafix/rules/src/main/scala/fix/Scalacollectioncompat_NewCollections.scala
rename to scalafix/rules/src/main/scala/fix/Scalacollectioncompat_newcollections.scala
index bb116efd..a310662f 100644
--- a/scalafix/rules/src/main/scala/fix/Scalacollectioncompat_NewCollections.scala
+++ b/scalafix/rules/src/main/scala/fix/Scalacollectioncompat_newcollections.scala
@@ -5,8 +5,8 @@ import scalafix.syntax._
 import scalafix.util._
 import scala.meta._
 
-case class Scalacollectioncompat_NewCollections(index: SemanticdbIndex)
-  extends SemanticRule(index, "Scalacollectioncompat_NewCollections") {
+case class Scalacollectioncompat_newcollections(index: SemanticdbIndex)
+  extends SemanticRule(index, "Scalacollectioncompat_newcollections") {
 
   def replaceSymbols(ctx: RuleCtx): Patch = {
     ctx.replaceSymbols(