diff --git a/test/test-context.c b/test/test-context.c
index d3392e3d..48aa80e3 100644
--- a/test/test-context.c
+++ b/test/test-context.c
@@ -31,6 +31,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <sys/resource.h>
 
 #include "libratbag.h"
 
@@ -162,6 +163,9 @@ int main(void)
 	Suite *s;
 	SRunner *sr;
 	bool using_valgrind;
+	const struct rlimit corelimit = { 0, 0 };
+
+	setrlimit(RLIMIT_CORE, &corelimit);
 
 	/* when running under valgrind we're using nofork mode, so a
 	 * signal raised by a test will fail in valgrind */
diff --git a/test/test-device.c b/test/test-device.c
index a19f30b1..c842b616 100644
--- a/test/test-device.c
+++ b/test/test-device.c
@@ -31,6 +31,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <limits.h>
+#include <sys/resource.h>
 
 #include "libratbag.h"
 #include "libratbag-test.h"
@@ -932,6 +933,9 @@ int main(void)
 	int nfailed;
 	Suite *s;
 	SRunner *sr;
+	const struct rlimit corelimit = { 0, 0 };
+
+	setrlimit(RLIMIT_CORE, &corelimit);
 
 	s = test_context_suite();
         sr = srunner_create(s);
diff --git a/test/test-iconv-helper.c b/test/test-iconv-helper.c
index cc3c9f1b..b3049243 100644
--- a/test/test-iconv-helper.c
+++ b/test/test-iconv-helper.c
@@ -25,6 +25,7 @@
 #include <check.h>
 #include <string.h>
 #include <errno.h>
+#include <sys/resource.h>
 
 #include "libratbag-util.h"
 
@@ -166,6 +167,9 @@ int main(void)
 	int nfailed;
 	Suite *s;
 	SRunner *sr;
+	const struct rlimit corelimit = { 0, 0 };
+
+	setrlimit(RLIMIT_CORE, &corelimit);
 
 	s = test_context_suite();
 	sr = srunner_create(s);
diff --git a/tools/ratbagctl.test.in b/tools/ratbagctl.test.in
index 57a7b9c1..902d2b09 100755
--- a/tools/ratbagctl.test.in
+++ b/tools/ratbagctl.test.in
@@ -29,6 +29,7 @@ import argparse
 import imp
 import io
 import os
+import resource
 import shutil
 import subprocess
 import sys
@@ -529,6 +530,8 @@ def main(argv):
     if not os.geteuid() == 0:
         sys.exit('Script must be run as root')
 
+    resource.setrlimit(resource.RLIMIT_CORE, (0, 0))
+
     args = parse(argv)
 
     unittest.main(argv=[sys.argv[0], *args])