diff --git a/pkgs/development/libraries/librdmacm/default.nix b/pkgs/development/libraries/librdmacm/default.nix
index 0f5500478b4d..843ff62530b2 100644
--- a/pkgs/development/libraries/librdmacm/default.nix
+++ b/pkgs/development/libraries/librdmacm/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     homepage = https://www.openfabrics.org/;
-    platforms = platforms.unix;
+    platforms = platforms.linux;
     license = licenses.bsd2;
     maintainers = with maintainers; [ wkennington ];
   };
diff --git a/pkgs/servers/corosync/default.nix b/pkgs/servers/corosync/default.nix
index f4ceca5f386d..5e8f2fd0caae 100644
--- a/pkgs/servers/corosync/default.nix
+++ b/pkgs/servers/corosync/default.nix
@@ -44,7 +44,7 @@ stdenv.mkDerivation rec {
     homepage = http://corosync.org/;
     description = "A Group Communication System with features for implementing high availability within applications";
     license = licenses.bsd3;
-    platforms = platforms.unix;
+    platforms = platforms.linux;
     maintainers = with maintainers; [ wkennington ];
   };
 }