diff --git a/pkgs/development/libraries/science/math/openblas/default.nix b/pkgs/development/libraries/science/math/openblas/default.nix
index 89d88bdf564a..37f875f1bfe6 100644
--- a/pkgs/development/libraries/science/math/openblas/default.nix
+++ b/pkgs/development/libraries/science/math/openblas/default.nix
@@ -71,6 +71,13 @@ let
       NO_AVX512 = true;
       USE_OPENMP = !stdenv.hostPlatform.isMusl;
     };
+
+    powerpc64le-linux = {
+      BINARY = 64;
+      TARGET = setTarget "POWER5";
+      DYNAMIC_ARCH = true;
+      USE_OPENMP = !stdenv.hostPlatform.isMusl;
+    };
   };
 in