diff --git a/pkgs/development/python-modules/slackclient/default.nix b/pkgs/development/python-modules/slackclient/default.nix
index 4a3c2927218..cf7b161261e 100644
--- a/pkgs/development/python-modules/slackclient/default.nix
+++ b/pkgs/development/python-modules/slackclient/default.nix
@@ -18,7 +18,7 @@
 }:
 
 buildPythonPackage rec {
-  pname = "python-slackclient";
+  pname = "slackclient";
   version = "2.9.3";
 
   disabled = !isPy3k;
diff --git a/pkgs/servers/home-assistant/component-packages.nix b/pkgs/servers/home-assistant/component-packages.nix
index fe36bb524c7..65d304fb90b 100644
--- a/pkgs/servers/home-assistant/component-packages.nix
+++ b/pkgs/servers/home-assistant/component-packages.nix
@@ -750,7 +750,7 @@
     "sky_hub" = ps: with ps; [ ]; # missing inputs: pyskyqhub
     "skybeacon" = ps: with ps; [ ]; # missing inputs: pygatt[GATTTOOL]
     "skybell" = ps: with ps; [ skybellpy ];
-    "slack" = ps: with ps; [ ]; # missing inputs: slackclient
+    "slack" = ps: with ps; [ slackclient ];
     "sleepiq" = ps: with ps; [ sleepyq ];
     "slide" = ps: with ps; [ ]; # missing inputs: goslide-api
     "sma" = ps: with ps; [ pysma ];