diff --git a/glnx-backport-testutils.c b/glnx-backport-testutils.c
index 31105c90..3440872d 100644
--- a/glnx-backport-testutils.c
+++ b/glnx-backport-testutils.c
@@ -33,6 +33,9 @@
 #include "glnx-backport-testutils.h"
 #include "glnx-backports.h"
 
+#include <sys/prctl.h>
+#include <sys/resource.h>
+
 #if !GLIB_CHECK_VERSION (2, 68, 0)
 /* Backport of g_assertion_message_cmpstrv() */
 void
@@ -143,3 +146,17 @@ _glnx_test_incomplete_printf (const char *format,
 #endif
 }
 #endif
+
+#if !GLIB_CHECK_VERSION (2, 78, 0)
+void
+_glnx_test_disable_crash_reporting (void)
+{
+  struct rlimit limit = { 0, 0 };
+
+  (void) setrlimit (RLIMIT_CORE, &limit);
+
+  /* On Linux, RLIMIT_CORE = 0 is ignored if core dumps are
+   * configured to be written to a pipe, but PR_SET_DUMPABLE is not. */
+  (void) prctl (PR_SET_DUMPABLE, 0, 0, 0, 0);
+}
+#endif
diff --git a/glnx-backport-testutils.h b/glnx-backport-testutils.h
index 9c17f06e..f579c0eb 100644
--- a/glnx-backport-testutils.h
+++ b/glnx-backport-testutils.h
@@ -201,4 +201,9 @@ void _glnx_test_skip_printf (const char *format, ...) G_GNUC_PRINTF (1, 2);
 void _glnx_test_incomplete_printf (const char *format, ...) G_GNUC_PRINTF (1, 2);
 #endif
 
+#if !GLIB_CHECK_VERSION (2, 78, 0)
+#define g_test_disable_crash_reporting _glnx_test_disable_crash_reporting
+void _glnx_test_disable_crash_reporting (void);
+#endif
+
 G_END_DECLS
diff --git a/tests/testing-helper.c b/tests/testing-helper.c
index 7c2192cf..0886678f 100644
--- a/tests/testing-helper.c
+++ b/tests/testing-helper.c
@@ -243,6 +243,7 @@ main (int   argc,
     }
 
   g_test_init (&argc, &argv, NULL);
+  g_test_disable_crash_reporting ();
 #if GLIB_CHECK_VERSION(2, 38, 0)
   g_test_set_nonfatal_assertions ();
 #endif