--- a/portage-utils-0.53/qsize.c
+++ b/portage-utils-0.53/qsize.c
@@ -8,6 +8,8 @@
 
 #ifdef APPLET_qsize
 
+#include <sys/param.h>
+
 #define QSIZE_FLAGS "fasSmkbi:" COMMON_FLAGS
 static struct option const qsize_long_opts[] = {
 	{"filesystem", no_argument, NULL, 'f'},
@@ -128,7 +130,7 @@
 					strcpy(filename_root, e->name);
 					++num_files;
 					if (!lstat(filename, &st))
-						num_bytes += (fs_size ? st.st_blocks * S_BLKSIZE : st.st_size);
+						num_bytes += (fs_size ? st.st_blocks * DEV_BSIZE : st.st_size);
 				} else
 					++num_nonfiles;
 			}