diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -180,6 +180,15 @@
 
     LDFLAGS=-L/usr/local/opt/openssl/lib CPPFLAGS=-I/usr/local/opt/openssl/include ./configure
 
+If you are using Stack with Nix, don't forget to declare `rdkafka` as extra package:
+```yaml
+# stack.yaml
+nix:
+  enable: true
+  packages:
+    - rdkafka
+```
+
 ## Installing Kafka
 
 The full Kafka guide is at http://kafka.apache.org/documentation.html#quickstart
diff --git a/hw-kafka-client.cabal b/hw-kafka-client.cabal
--- a/hw-kafka-client.cabal
+++ b/hw-kafka-client.cabal
@@ -1,5 +1,5 @@
 name:           hw-kafka-client
-version:        2.6.0
+version:        2.6.1
 synopsis:       Kafka bindings for Haskell
 description:    Apache Kafka bindings backed by the librdkafka C library.
                 .
@@ -32,16 +32,14 @@
   default: False
 
 library
-  hs-source-dirs:
-      src
+  hs-source-dirs: src
   ghc-options:
     -Wall
     -Wcompat
     -Wincomplete-record-updates
     -Wincomplete-uni-patterns
     -Wredundant-constraints
-  extra-libraries:
-      rdkafka
+  extra-libraries: rdkafka
   build-depends:
       base >=4.6 && <5
     , bifunctors
@@ -50,8 +48,7 @@
     , text
     , transformers
     , unix
-  build-tools:
-      c2hs
+  build-tools: c2hs
   if impl(ghc <8.0)
     build-depends:
         semigroups
@@ -78,36 +75,28 @@
       Kafka.Internal.Shared
       Kafka.Producer.Callbacks
       Kafka.Producer.Convert
-      Paths_hw_kafka_client
   default-language: Haskell2010
 
 executable kafka-client-example
   main-is: Main.hs
-  hs-source-dirs:
-      example
+  hs-source-dirs: example
   ghc-options: -threaded -rtsopts
   build-depends:
       base >=4.6 && <5
-    , bifunctors
     , bytestring
-    , containers
     , hw-kafka-client
     , text
-    , transformers
-    , unix
   if !(flag(examples))
     buildable: False
   other-modules:
       ConsumerExample
       ProducerExample
-      Paths_hw_kafka_client
   default-language: Haskell2010
 
 test-suite integration-tests
   type: exitcode-stdio-1.0
   main-is: Spec.hs
-  hs-source-dirs:
-      tests-it
+  hs-source-dirs: tests-it
   ghc-options: -Wall -threaded
   build-depends:
       base >=4.6 && <5
@@ -123,14 +112,12 @@
   other-modules:
       Kafka.IntegrationSpec
       Kafka.TestEnv
-      Paths_hw_kafka_client
   default-language: Haskell2010
 
 test-suite tests
   type: exitcode-stdio-1.0
   main-is: Spec.hs
-  hs-source-dirs:
-      tests
+  hs-source-dirs: tests
   ghc-options: -Wall -threaded
   build-depends:
       base >=4.6 && <5
@@ -145,5 +132,4 @@
   other-modules:
       Kafka.Consumer.ConsumerRecordMapSpec
       Kafka.Consumer.ConsumerRecordTraverseSpec
-      Paths_hw_kafka_client
   default-language: Haskell2010
diff --git a/src/Kafka/Internal/RdKafka.chs b/src/Kafka/Internal/RdKafka.chs
--- a/src/Kafka/Internal/RdKafka.chs
+++ b/src/Kafka/Internal/RdKafka.chs
@@ -827,7 +827,7 @@
     {enumToCInt `RdKafkaTypeT', `RdKafkaConfTPtr', id `CCharBufPointer', cIntConv `CSize'}
     -> `RdKafkaTPtr' #}
 
-foreign import ccall unsafe "rdkafka.h &rd_kafka_destroy"
+foreign import ccall safe "rdkafka.h &rd_kafka_destroy"
     rdKafkaDestroy :: FunPtr (Ptr RdKafkaT -> IO ())
 
 newRdKafkaT :: RdKafkaTypeT -> RdKafkaConfTPtr -> IO (Either Text RdKafkaTPtr)