diff --git a/pkgs/by-name/co/cohomcalg/package.nix b/pkgs/by-name/co/cohomcalg/package.nix
index de7f1bf24843..b009607f3260 100644
--- a/pkgs/by-name/co/cohomcalg/package.nix
+++ b/pkgs/by-name/co/cohomcalg/package.nix
@@ -49,5 +49,6 @@ stdenv.mkDerivation (finalAttrs: {
     homepage = "https://github.com/BenjaminJurke/cohomCalg";
     license = lib.licenses.gpl3Only;
     maintainers = with lib.maintainers; [ coolcuber ];
+    platforms = lib.platforms.unix;
   };
 })
diff --git a/pkgs/by-name/fr/frobby/package.nix b/pkgs/by-name/fr/frobby/package.nix
index 6f6d351a70d7..f570548aa4fa 100644
--- a/pkgs/by-name/fr/frobby/package.nix
+++ b/pkgs/by-name/fr/frobby/package.nix
@@ -65,5 +65,6 @@ stdenv.mkDerivation (finalAttrs: {
     homepage = "https://github.com/Macaulay2/frobby";
     license = lib.licenses.gpl2Plus;
     maintainers = with lib.maintainers; [ coolcuber ];
+    platforms = lib.platforms.unix;
   };
 })
diff --git a/pkgs/by-name/ma/macaulay2/package.nix b/pkgs/by-name/ma/macaulay2/package.nix
index 9c4221e64d8a..04c20ea6ab78 100644
--- a/pkgs/by-name/ma/macaulay2/package.nix
+++ b/pkgs/by-name/ma/macaulay2/package.nix
@@ -294,5 +294,6 @@ stdenv.mkDerivation (finalAttrs: {
     homepage = "https://macaulay2.com/";
     license = lib.licenses.gpl2Plus;
     maintainers = with lib.maintainers; [ coolcuber ];
+    platforms = lib.platforms.linux ++ lib.platforms.darwin;
   };
 })
diff --git a/pkgs/by-name/ma/mathic/package.nix b/pkgs/by-name/ma/mathic/package.nix
index 0c479abd798d..9a2a11472b9b 100644
--- a/pkgs/by-name/ma/mathic/package.nix
+++ b/pkgs/by-name/ma/mathic/package.nix
@@ -61,5 +61,6 @@ stdenv.mkDerivation (finalAttrs: {
     homepage = "https://github.com/Macaulay2/mathic";
     license = lib.licenses.lgpl2Plus;
     maintainers = with lib.maintainers; [ coolcuber ];
+    platforms = lib.platforms.unix;
   };
 })
diff --git a/pkgs/by-name/ma/mathicgb/package.nix b/pkgs/by-name/ma/mathicgb/package.nix
index 984476a6e007..3e11ddd869c6 100644
--- a/pkgs/by-name/ma/mathicgb/package.nix
+++ b/pkgs/by-name/ma/mathicgb/package.nix
@@ -58,5 +58,6 @@ stdenv.mkDerivation (finalAttrs: {
     homepage = "https://github.com/Macaulay2/mathicgb";
     license = lib.licenses.gpl2Plus;
     maintainers = with lib.maintainers; [ coolcuber ];
+    platforms = lib.platforms.unix;
   };
 })
diff --git a/pkgs/by-name/me/memtailor/package.nix b/pkgs/by-name/me/memtailor/package.nix
index 11fba610ce69..85b816aab55a 100644
--- a/pkgs/by-name/me/memtailor/package.nix
+++ b/pkgs/by-name/me/memtailor/package.nix
@@ -51,5 +51,6 @@ stdenv.mkDerivation (finalAttrs: {
     homepage = "https://github.com/Macaulay2/memtailor";
     license = lib.licenses.bsd3;
     maintainers = with lib.maintainers; [ coolcuber ];
+    platforms = lib.platforms.unix;
   };
 })
diff --git a/pkgs/by-name/to/topcom/package.nix b/pkgs/by-name/to/topcom/package.nix
index 38772035df8e..8d7b1030b099 100644
--- a/pkgs/by-name/to/topcom/package.nix
+++ b/pkgs/by-name/to/topcom/package.nix
@@ -79,5 +79,6 @@ stdenv.mkDerivation (finalAttrs: {
     homepage = "https://www.wm.uni-bayreuth.de/de/team/rambau_joerg/TOPCOM/index.html";
     license = lib.licenses.gpl3Plus;
     maintainers = with lib.maintainers; [ coolcuber ];
+    platforms = lib.platforms.unix;
   };
 })