diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index 5794b757..f263c5f1 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -432,6 +432,7 @@ name = "pv_core"
 version = "1.0.0"
 dependencies = [
  "byteorder",
+ "lazy_static",
  "libc",
  "log",
  "serde",
diff --git a/rust/pv_core/Cargo.toml b/rust/pv_core/Cargo.toml
index 18ca645b..76597c32 100644
--- a/rust/pv_core/Cargo.toml
+++ b/rust/pv_core/Cargo.toml
@@ -16,4 +16,5 @@ serde = { version = "1.0.139", features = ["derive"]}
 byteorder = "1.3"
 
 [dev-dependencies]
+lazy_static = "1.4.0"
 serde_test = "1"