diff --git a/src/unit/test_util.c b/src/unit/test_util.c
index 4558c38c3..9858318e0 100644
--- a/src/unit/test_util.c
+++ b/src/unit/test_util.c
@@ -6,6 +6,11 @@
 #include "../util.h"
 #include "test_help.h"
 
+#if defined(__linux__)
+#include <sys/statfs.h>
+#include <linux/magic.h>
+#endif
+
 int test_string2ll(int argc, char **argv, int flags) {
     UNUSED(argc);
     UNUSED(argv);
@@ -291,6 +296,15 @@ int test_reclaimFilePageCache(int argc, char **argv, int flags) {
     if (flags & UNIT_TEST_VALGRIND) return 0;
 
 #if defined(__linux__)
+    struct statfs stats;
+
+    /* Check if /tmp is memory-backed (e.g., tmpfs) */
+    if (statfs("/tmp", &stats) == 0) {
+        if (stats.f_type != TMPFS_MAGIC) { // Not tmpfs, use /tmp
+            return 0;
+        }
+    }
+
     char *tmpfile = "/tmp/redis-reclaim-cache-test";
     int fd = open(tmpfile, O_RDWR | O_CREAT, 0644);
     TEST_ASSERT(fd >= 0);