1 files changed, 1 insertions, 1 deletions

diff --git a/src/firejail/netfilter.c b/src/firejail/netfilter.c
index fd8a9b2f3..da13d8092 100644
--- a/src/firejail/netfilter.c
+++ b/src/firejail/netfilter.c
@@ -79,7 +79,7 @@ void netfilter(const char *fname) {
                 }
 
                 size_t sz = fread(filter, 1, s.st_size, fp);
-                if (sz != s.st_size) {
+                if ((off_t)sz != s.st_size) {
                         fprintf(stderr, "Error: cannot read network filter file\n");
                         exit(1);
                 }