diff --git a/tests/.gitignore b/tests/.gitignore
index 2f5f95e4..d89e9e6d 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -73,6 +73,7 @@ getresgid32
 getresuid
 getresuid32
 getrusage
+getsid
 getuid
 getuid32
 getxxid
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 6c6c8b30..7662a6d8 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -126,6 +126,7 @@ check_PROGRAMS = \
 	getresuid \
 	getresuid32 \
 	getrusage \
+	getsid \
 	getuid \
 	getuid32 \
 	getxxid \
@@ -371,6 +372,7 @@ DECODER_TESTS = \
 	getresuid.test \
 	getresuid32.test \
 	getrusage.test \
+	getsid.test \
 	getuid.test \
 	getuid32.test \
 	getxxid.test \
diff --git a/tests/getsid.c b/tests/getsid.c
new file mode 100644
index 00000000..b563de9d
--- /dev/null
+++ b/tests/getsid.c
@@ -0,0 +1,13 @@
+#include "tests.h"
+#include <stdio.h>
+#include <unistd.h>
+
+int
+main(void)
+{
+	pid_t pid = getpid();
+	printf("getsid(%d) = %d\n", pid, getsid(pid));
+
+	puts("+++ exited with 0 +++");
+	return 0;
+}
diff --git a/tests/getsid.test b/tests/getsid.test
new file mode 100755
index 00000000..3fcf9799
--- /dev/null
+++ b/tests/getsid.test
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+# Check getsid syscall decoding.
+
+. "${srcdir=.}/init.sh"
+run_strace_match_diff -a10