diff --git a/cameleon/Cargo.toml b/cameleon/Cargo.toml
index d369f6e5..7046a7e0 100644
--- a/cameleon/Cargo.toml
+++ b/cameleon/Cargo.toml
@@ -18,7 +18,7 @@ keywords = ["genicam", "camera", "usb3", "gige", "uvc"]
 [dependencies]
 thiserror = "1.0.24"
 semver = "1.0.0"
-zip = "0.6.0"
+zip = { version = "0.6.0", default-features = false, features = ["deflate"] }
 sha-1 = "0.10.0"
 async-channel = "1.7.0" # 1.7.0 has added recv_blocking()
 tracing = "0.1.26"
diff --git a/gentl/src/ffi/mod.rs b/gentl/src/ffi/mod.rs
index e00f0717..8d7825a5 100644
--- a/gentl/src/ffi/mod.rs
+++ b/gentl/src/ffi/mod.rs
@@ -183,7 +183,7 @@ lazy_static::lazy_static! {
 }
 
 thread_local! {
-    static LAST_ERROR: RefCell<LastError> = {
+    static LAST_ERROR: RefCell<LastError> = const {
         let last_error = LastError {
             err: None,
         };