diff --git a/fs/proc/base.c b/fs/proc/base.c
index ca651ac00660889a86fcd5c27d4a29aa709d5a53..e1227bc570907eb810bd4d8a671631f9b69e7398 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -106,7 +106,7 @@
 
 struct pid_entry {
 	const char *name;
-	int len;
+	unsigned int len;
 	umode_t mode;
 	const struct inode_operations *iop;
 	const struct file_operations *fop;