diff --git a/std/os/child_process.zig b/std/os/child_process.zig
index 8c09f25be..bb5b2eb18 100644
--- a/std/os/child_process.zig
+++ b/std/os/child_process.zig
@@ -66,10 +66,9 @@ pub const ChildProcess = struct {
             break;
         }
 
-        // TODO oops!
         test (self.stdin) |*stdin| { stdin.close(); }
-        test (self.stdin) |*stdout| { stdout.close(); }
-        test (self.stdin) |*stderr| { stderr.close(); }
+        test (self.stdout) |*stdout| { stdout.close(); }
+        test (self.stderr) |*stderr| { stderr.close(); }
 
         // Write @maxValue(ErrInt) to the write end of the err_pipe. This is after
         // waitpid, so this write is guaranteed to be after the child
diff --git a/test/tests.zig b/test/tests.zig
index 354776140..97ae39309 100644
--- a/test/tests.zig
+++ b/test/tests.zig
@@ -195,6 +195,12 @@ pub const CompareOutputContext = struct {
                 debug.panic("Unable to spawn {}: {}\n", full_exe_path, @errorName(err));
             };
 
+            var stdout = Buffer.initNull(b.allocator);
+            var stderr = Buffer.initNull(b.allocator);
+
+            %%(??child.stdout).readAll(&stdout);
+            %%(??child.stderr).readAll(&stderr);
+
             const term = child.wait() %% |err| {
                 debug.panic("Unable to spawn {}: {}\n", full_exe_path, @errorName(err));
             };
@@ -211,11 +217,6 @@ pub const CompareOutputContext = struct {
                 },
             };
 
-            var stdout = Buffer.initNull(b.allocator);
-            var stderr = Buffer.initNull(b.allocator);
-
-            %%(??child.stdout).readAll(&stdout);
-            %%(??child.stderr).readAll(&stderr);
 
             if (!mem.eql(u8, self.expected_output, stdout.toSliceConst())) {
                 %%io.stderr.printf(
@@ -521,6 +522,12 @@ pub const CompileErrorContext = struct {
                 debug.panic("Unable to spawn {}: {}\n", b.zig_exe, @errorName(err));
             };
 
+            var stdout_buf = Buffer.initNull(b.allocator);
+            var stderr_buf = Buffer.initNull(b.allocator);
+
+            %%(??child.stdout).readAll(&stdout_buf);
+            %%(??child.stderr).readAll(&stderr_buf);
+
             const term = child.wait() %% |err| {
                 debug.panic("Unable to spawn {}: {}\n", b.zig_exe, @errorName(err));
             };
@@ -537,11 +544,6 @@ pub const CompileErrorContext = struct {
                 },
             };
 
-            var stdout_buf = Buffer.initNull(b.allocator);
-            var stderr_buf = Buffer.initNull(b.allocator);
-
-            %%(??child.stdout).readAll(&stdout_buf);
-            %%(??child.stderr).readAll(&stderr_buf);
 
             const stdout = stdout_buf.toSliceConst();
             const stderr = stderr_buf.toSliceConst();
@@ -783,6 +785,12 @@ pub const ParseHContext = struct {
                 debug.panic("Unable to spawn {}: {}\n", b.zig_exe, @errorName(err));
             };
 
+            var stdout_buf = Buffer.initNull(b.allocator);
+            var stderr_buf = Buffer.initNull(b.allocator);
+
+            %%(??child.stdout).readAll(&stdout_buf);
+            %%(??child.stderr).readAll(&stderr_buf);
+
             const term = child.wait() %% |err| {
                 debug.panic("Unable to spawn {}: {}\n", b.zig_exe, @errorName(err));
             };
@@ -803,12 +811,6 @@ pub const ParseHContext = struct {
                 },
             };
 
-            var stdout_buf = Buffer.initNull(b.allocator);
-            var stderr_buf = Buffer.initNull(b.allocator);
-
-            %%(??child.stdout).readAll(&stdout_buf);
-            %%(??child.stderr).readAll(&stderr_buf);
-
             const stdout = stdout_buf.toSliceConst();
             const stderr = stderr_buf.toSliceConst();