diff --git a/ext/opcache/ZendAccelerator.c b/ext/opcache/ZendAccelerator.c
index b453cd2390bf2..ece89bf348220 100644
--- a/ext/opcache/ZendAccelerator.c
+++ b/ext/opcache/ZendAccelerator.c
@@ -3006,11 +3006,11 @@ static void accel_move_code_to_huge_pages(void)
 	f = fopen("/proc/self/maps", "r");
 	if (f) {
 		long unsigned int  start, end, offset, inode;
-		char perm[5], dev[6], name[MAXPATHLEN];
+		char perm[5], dev[10], name[MAXPATHLEN];
 		int ret;
 
 		while (1) {
-			ret = fscanf(f, "%lx-%lx %4s %lx %5s %ld %s\n", &start, &end, perm, &offset, dev, &inode, name);
+			ret = fscanf(f, "%lx-%lx %4s %lx %9s %ld %s\n", &start, &end, perm, &offset, dev, &inode, name);
 			if (ret == 7) {
 				if (perm[0] == 'r' && perm[1] == '-' && perm[2] == 'x' && name[0] == '/') {
 					long unsigned int  seg_start = ZEND_MM_ALIGNED_SIZE_EX(start, huge_page_size);