diff --git a/Misc/NEWS.d/next/Tests/2026-07-19-18-20-00.gh-issue-154144.tcbool.rst b/Misc/NEWS.d/next/Tests/2026-07-19-18-20-00.gh-issue-154144.tcbool.rst
new file mode 100644
index 000000000000000..dc1ac8b4035153c
--- /dev/null
+++ b/Misc/NEWS.d/next/Tests/2026-07-19-18-20-00.gh-issue-154144.tcbool.rst
@@ -0,0 +1 @@
+Fix building the :mod:`!_testcapi` module on NetBSD.
diff --git a/Modules/_testcapimodule.c b/Modules/_testcapimodule.c
index 799390c27053287..fb18a866e628128 100644
--- a/Modules/_testcapimodule.c
+++ b/Modules/_testcapimodule.c
@@ -15,6 +15,10 @@
 #include "frameobject.h"          // PyFrame_New()
 #include "marshal.h"              // PyMarshal_WriteLongToFile()
 
+#ifdef bool
+#  error "The public headers should not include <stdbool.h>, see gh-90904"
+#endif
+
 #include <float.h>                // FLT_MAX
 #include <signal.h>
 #include <stddef.h>               // offsetof()
@@ -26,10 +30,6 @@
 #  include <sys/sysctl.h>         // sysctlbyname()
 #endif
 
-#ifdef bool
-#  error "The public headers should not include <stdbool.h>, see gh-48924"
-#endif
-
 #include "_testcapi/util.h"