diff --git a/tests/.gitignore b/tests/.gitignore
index e9dc19b..222255f 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -100,6 +100,7 @@
 pipe
 poll
 ppoll
+prctl-seccomp-strict
 pread64-pwrite64
 preadv
 preadv-pwritev
diff --git a/tests/Makefile.am b/tests/Makefile.am
index f702f60..183ff7c 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -149,6 +149,7 @@
 	pipe \
 	poll \
 	ppoll \
+	prctl-seccomp-strict \
 	pread64-pwrite64 \
 	preadv \
 	preadv-pwritev \
@@ -346,6 +347,7 @@
 	pipe.test \
 	poll.test \
 	ppoll.test \
+	prctl-seccomp-strict.test \
 	pread64-pwrite64.test \
 	preadv-pwritev.test \
 	preadv.test \
diff --git a/tests/prctl-seccomp-strict.c b/tests/prctl-seccomp-strict.c
new file mode 100644
index 0000000..22db394
--- /dev/null
+++ b/tests/prctl-seccomp-strict.c
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "tests.h"
+#include <sys/syscall.h>
+#ifdef HAVE_PRCTL
+# include <sys/prctl.h>
+#endif
+
+#if defined HAVE_PRCTL && defined PR_SET_SECCOMP && defined __NR_exit
+
+# include <assert.h>
+# include <errno.h>
+# include <stdio.h>
+# include <unistd.h>
+
+int
+main(void)
+{
+	static const char text1[] =
+		"prctl(PR_SET_SECCOMP, SECCOMP_MODE_STRICT) = 0\n";
+	static const char text2[] = "+++ exited with 0 +++\n";
+	int rc = 0;
+
+	assert(prctl(PR_SET_SECCOMP, -1L, 1, 2, 3) == -1);
+	printf("prctl(PR_SET_SECCOMP, %#x /* SECCOMP_MODE_??? */, 0x1, 0x2, 0x3)"
+	       " = -1 %s (%m)\n", -1, ENOSYS == errno ? "ENOSYS" : "EINVAL");
+	fflush(stdout);
+
+	if (prctl(PR_SET_SECCOMP, 1)) {
+		printf("prctl(PR_SET_SECCOMP, SECCOMP_MODE_STRICT) = -1 %s (%m)\n",
+		       ENOSYS == errno ? "ENOSYS" : "EINVAL");
+		fflush(stdout);
+	} else {
+		rc += write(1, text1, LENGTH_OF(text1)) != LENGTH_OF(text1);
+	}
+
+	rc += write(1, text2, LENGTH_OF(text2)) != LENGTH_OF(text2);
+	return !!syscall(__NR_exit, rc);
+}
+
+#else
+
+SKIP_MAIN_UNDEFINED("HAVE_PRCTL && PR_SET_SECCOMP && __NR_exit")
+
+#endif
diff --git a/tests/prctl-seccomp-strict.test b/tests/prctl-seccomp-strict.test
new file mode 100755
index 0000000..4ce9724
--- /dev/null
+++ b/tests/prctl-seccomp-strict.test
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+# Check how prctl PR_SET_SECCOMP SECCOMP_MODE_STRICT is decoded.
+
+. "${srcdir=.}/init.sh"
+run_strace_match_diff -e trace=prctl