diff --git a/pkgs/by-name/tb/tbb_2021/package.nix b/pkgs/by-name/tb/tbb_2021/package.nix
index d20f88c6681a4..6b6b57cda1454 100644
--- a/pkgs/by-name/tb/tbb_2021/package.nix
+++ b/pkgs/by-name/tb/tbb_2021/package.nix
@@ -40,6 +40,11 @@ stdenv.mkDerivation (finalAttrs: {
       url = "https://patch-diff.githubusercontent.com/raw/uxlfoundation/oneTBB/pull/1696.patch";
       hash = "sha256-yjX2FkOK8bz29a/XSA7qXgQw9lxzx8VIgEBREW32NN4=";
     })
+    # Fix 32-bit PowerPC build
+    (fetchpatch {
+      url = "https://github.com/uxlfoundation/oneTBB/pull/987/commits/c828ae47b8f4bea7736d2f9d05460e2b529c9d7d.patch";
+      hash = "sha256-faNiVdHRIkmavufDHQQ8vHppvdahZ7yhJVL3bOwNTFg=";
+    })
   ];
 
   patchFlags = [
diff --git a/pkgs/by-name/tb/tbb_2022/package.nix b/pkgs/by-name/tb/tbb_2022/package.nix
index 66b8c9d4a0f02..af24d66d1fdef 100644
--- a/pkgs/by-name/tb/tbb_2022/package.nix
+++ b/pkgs/by-name/tb/tbb_2022/package.nix
@@ -40,6 +40,11 @@ stdenv.mkDerivation (finalAttrs: {
       url = "https://patch-diff.githubusercontent.com/raw/uxlfoundation/oneTBB/pull/1696.patch";
       hash = "sha256-yjX2FkOK8bz29a/XSA7qXgQw9lxzx8VIgEBREW32NN4=";
     })
+    # Fix 32-bit PowerPC build
+    (fetchpatch {
+      url = "https://github.com/uxlfoundation/oneTBB/pull/987/commits/c828ae47b8f4bea7736d2f9d05460e2b529c9d7d.patch";
+      hash = "sha256-faNiVdHRIkmavufDHQQ8vHppvdahZ7yhJVL3bOwNTFg=";
+    })
   ];
 
   # Fix build with modern gcc