diff --git a/lib/std/zig/PkgConfig.zig b/lib/std/zig/PkgConfig.zig
index c37b1476436f87363132b2f2f567d844759abddc..77a445c051a726fe57470412507e78563eccbd04 100644
--- a/lib/std/zig/PkgConfig.zig
+++ b/lib/std/zig/PkgConfig.zig
@@ -95,6 +95,7 @@ pub const Parsed = struct {
     cflags: []const []const u8,
     libs: []const []const u8,
     unknown_flags: []const []const u8,
+    pthread: bool,
 };
 
 pub const ParseError = Allocator.Error || error{InvalidPkgConfigOutput};
@@ -105,6 +106,7 @@ pub fn parse(arena: Allocator, stdout: []const u8) ParseError!Parsed {
     var zig_libs: std.ArrayList([]const u8) = .empty;
     var unknown_flags: std.ArrayList([]const u8) = .empty;
     var arg_it = mem.tokenizeAny(u8, stdout, " \r\n\t");
+    var pthread = false;
 
     while (arg_it.next()) |arg| {
         if (mem.eql(u8, arg, "-I")) {
@@ -129,6 +131,8 @@ pub fn parse(arena: Allocator, stdout: []const u8) ParseError!Parsed {
             try zig_cflags.append(arena, arg);
         } else if (mem.cutPrefix(u8, arg, "-Wl,-rpath,")) |rest| {
             try zig_cflags.appendSlice(arena, &.{ "-rpath", rest });
+        } else if (mem.eql(u8, arg, "-pthread")) {
+            pthread = true;
         } else {
             try unknown_flags.append(arena, arg);
         }
@@ -142,5 +146,6 @@ pub fn parse(arena: Allocator, stdout: []const u8) ParseError!Parsed {
         .cflags = zig_cflags.toOwnedSliceAssert(),
         .libs = zig_libs.toOwnedSliceAssert(),
         .unknown_flags = unknown_flags.toOwnedSliceAssert(),
+        .pthread = pthread,
     };
 }