9 files changed, 18 insertions, 0 deletions
diff --git a/fuzzer/src/main/scala/firrtl/ExprGen.scala b/fuzzer/src/main/scala/firrtl/ExprGen.scala
index fe85799a..cdb4cedf 100644
--- a/fuzzer/src/main/scala/firrtl/ExprGen.scala
+++ b/fuzzer/src/main/scala/firrtl/ExprGen.scala
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+
 package firrtl.fuzzer
 
 import firrtl.ir._
diff --git a/fuzzer/src/main/scala/firrtl/ExprGenParams.scala b/fuzzer/src/main/scala/firrtl/ExprGenParams.scala
index 4c11b860..0febc47c 100644
--- a/fuzzer/src/main/scala/firrtl/ExprGenParams.scala
+++ b/fuzzer/src/main/scala/firrtl/ExprGenParams.scala
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+
 package firrtl.fuzzer
 
 import com.pholser.junit.quickcheck.generator.{Generator, GenerationStatus}
diff --git a/fuzzer/src/main/scala/firrtl/ExprState.scala b/fuzzer/src/main/scala/firrtl/ExprState.scala
index f1a2f0d1..b2fd40ab 100644
--- a/fuzzer/src/main/scala/firrtl/ExprState.scala
+++ b/fuzzer/src/main/scala/firrtl/ExprState.scala
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+
 package firrtl.fuzzer
 
 import firrtl.ir.{Expression, Reference, Type}
diff --git a/fuzzer/src/main/scala/firrtl/FirrtlCompileTests.scala b/fuzzer/src/main/scala/firrtl/FirrtlCompileTests.scala
index 3091e4d6..213fc8e8 100644
--- a/fuzzer/src/main/scala/firrtl/FirrtlCompileTests.scala
+++ b/fuzzer/src/main/scala/firrtl/FirrtlCompileTests.scala
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+
 package firrtl.fuzzer
 
 import com.pholser.junit.quickcheck.From
diff --git a/fuzzer/src/main/scala/firrtl/FirrtlEquivalenceTest.scala b/fuzzer/src/main/scala/firrtl/FirrtlEquivalenceTest.scala
index 822744c2..23c62758 100644
--- a/fuzzer/src/main/scala/firrtl/FirrtlEquivalenceTest.scala
+++ b/fuzzer/src/main/scala/firrtl/FirrtlEquivalenceTest.scala
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+
 package firrtl.fuzzer
 
 import com.pholser.junit.quickcheck.From
diff --git a/fuzzer/src/main/scala/firrtl/GenMonad.scala b/fuzzer/src/main/scala/firrtl/GenMonad.scala
index 36627f62..c45260be 100644
--- a/fuzzer/src/main/scala/firrtl/GenMonad.scala
+++ b/fuzzer/src/main/scala/firrtl/GenMonad.scala
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+
 package firrtl.fuzzer
 
 import scala.language.higherKinds
diff --git a/fuzzer/src/main/scala/firrtl/StateGen.scala b/fuzzer/src/main/scala/firrtl/StateGen.scala
index 67a02eed..20cd479c 100644
--- a/fuzzer/src/main/scala/firrtl/StateGen.scala
+++ b/fuzzer/src/main/scala/firrtl/StateGen.scala
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+
 package firrtl.fuzzer
 
 import scala.language.higherKinds
diff --git a/fuzzer/src/test/scala/Example.scala b/fuzzer/src/test/scala/Example.scala
index 9779f7b0..89fd19cf 100644
--- a/fuzzer/src/test/scala/Example.scala
+++ b/fuzzer/src/test/scala/Example.scala
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+
 package firrtl.fuzzer
 
 import org.scalacheck.{Gen, Prop, Properties}
diff --git a/fuzzer/src/test/scala/GenMonad.scala b/fuzzer/src/test/scala/GenMonad.scala
index 0eaadd13..4bd4f5ec 100644
--- a/fuzzer/src/test/scala/GenMonad.scala
+++ b/fuzzer/src/test/scala/GenMonad.scala
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+
 package firrtl.fuzzer
 
 import org.scalacheck.{Gen, Properties}