1 files changed, 3 insertions, 3 deletions
diff --git a/c_src/util.c b/c_src/util.c
index 05adcd7..bba051f 100644
--- a/c_src/util.c
+++ b/c_src/util.c
@@ -44,10 +44,10 @@ set_error(char **error, const char *format, ...)
         va_end(args);
 }
 
-int
-calc_padding(int offset, int alignment)
+uint64_t
+calc_padding(uint64_t offset, uint64_t alignment)
 {
-        int misalign = offset % alignment;
+        uint64_t misalign = offset % alignment;
 
         if (misalign == 0) {
                 return 0;