diff --git a/tools/process_headers.zig b/tools/process_headers.zig
index a15481afa2..4be476a456 100644
--- a/tools/process_headers.zig
+++ b/tools/process_headers.zig
@@ -174,12 +174,11 @@ const glibc_targets = [_]LibCTarget{
         .arch = MultiArch{ .specific = Arch.s390x },
         .abi = MultiAbi{ .specific = Abi.gnu },
     },
-    // It's unclear which zig target this glibc sparcv9 target maps to.
-    //LibCTarget{
-    //    .name = "sparcv9-linux-gnu",
-    //    .arch = MultiArch{ .specific = Arch.sparc },
-    //    .abi = MultiAbi{ .specific = Abi.gnu },
-    //},
+    LibCTarget{
+        .name = "sparcv9-linux-gnu",
+        .arch = MultiArch{ .specific = Arch.sparc },
+        .abi = MultiAbi{ .specific = Abi.gnu },
+    },
     LibCTarget{
         .name = "sparc64-linux-gnu",
         .arch = MultiArch{ .specific = Arch.sparc64 },