diff --git a/proc/meminfo.c b/proc/meminfo.c
index f28b0b11..3f949450 100644
--- a/proc/meminfo.c
+++ b/proc/meminfo.c
@@ -859,6 +859,9 @@ PROCPS_EXPORT int procps_meminfo_unref (
     if ((*info)->refcount < 1) {
         int errno_sav = errno;
 
+        if ((*info)->meminfo_fd != -1)
+            close((*info)->meminfo_fd);
+
         if ((*info)->extents)
             meminfo_extents_free_all((*info));
         if ((*info)->items)
diff --git a/proc/vmstat.c b/proc/vmstat.c
index 2a6b9514..511dcb4a 100644
--- a/proc/vmstat.c
+++ b/proc/vmstat.c
@@ -1356,6 +1356,9 @@ PROCPS_EXPORT int procps_vmstat_unref (
     if ((*info)->refcount < 1) {
         int errno_sav = errno;
 
+        if ((*info)->vmstat_fd != -1)
+            close((*info)->vmstat_fd);
+
         if ((*info)->extents)
             vmstat_extents_free_all((*info));
         if ((*info)->items)