diff --git a/include/humanize_number.h b/include/humanize_number.h
new file mode 100644
index 0000000000..b784da1ad3
--- /dev/null
+++ b/include/humanize_number.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 1997, 1998, 1999, 2002 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
+ * NASA Ames Research Center, by Luke Mewburn and by Tomas Svensson.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _HUMANIZE_NUMBER_H_
+#define _HUMANIZE_NUMBER_H_
+
+#define HN_DECIMAL		0x01
+#define HN_NOSPACE		0x02
+#define HN_B			0x04
+#define HN_DIVISOR_1000		0x08
+#define HN_GETSCALE		0x10
+#define HN_AUTOSCALE		0x20
+
+int humanize_number(char *, size_t, int64_t, const char *, int, int);
+
+#endif
diff --git a/include/xbps_api.h b/include/xbps_api.h
index be3b1cd28d..4a83d20c7f 100644
--- a/include/xbps_api.h
+++ b/include/xbps_api.h
@@ -48,4 +48,7 @@
 /* SHA256 implementation */
 #include "sha256.h"
 
+/* NetBSD humanize_number() */
+#include "humanize_number.h"
+
 #endif /* !_XBPS_API_H_ */
diff --git a/lib/humanize_number.c b/lib/humanize_number.c
index 87dde9d1ff..5068cc7a68 100644
--- a/lib/humanize_number.c
+++ b/lib/humanize_number.c
@@ -37,12 +37,7 @@
 #include <string.h>
 #include <locale.h>
 
-#define	HN_DECIMAL		0x01
-#define	HN_NOSPACE		0x02
-#define	HN_B			0x04
-#define	HN_DIVISOR_1000		0x08
-#define	HN_GETSCALE		0x10
-#define	HN_AUTOSCALE		0x20
+#include <xbps_api.h>
 
 int
 humanize_number(char *buf, size_t len, int64_t bytes,
diff --git a/lib/plist.c b/lib/plist.c
index 7fe588f5a3..436b578459 100644
--- a/lib/plist.c
+++ b/lib/plist.c
@@ -373,6 +373,7 @@ xbps_show_pkg_info(prop_dictionary_t dict)
 {
 	prop_object_t obj;
 	const char *sep = NULL;
+	char size[64];
 
 	assert(dict != NULL);
 	if (prop_dictionary_count(dict) == 0)
@@ -383,9 +384,12 @@ xbps_show_pkg_info(prop_dictionary_t dict)
 		printf("Package: %s\n", prop_string_cstring_nocopy(obj));
 
 	obj = prop_dictionary_get(dict, "installed_size");
-	if (obj && prop_object_type(obj) == PROP_TYPE_NUMBER)
-		printf("Installed size: %zu bytes\n",
-		    prop_number_unsigned_integer_value(obj));
+	if (obj && prop_object_type(obj) == PROP_TYPE_NUMBER) {
+		humanize_number(size, 5,
+		    (int64_t)prop_number_unsigned_integer_value(obj),
+		    "", HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL);
+		printf("Installed size: %s\n", size);
+	}
 
 	obj = prop_dictionary_get(dict, "maintainer");
 	if (obj && prop_object_type(obj) == PROP_TYPE_STRING)