diff --git a/doc/en/weechat_plugin_api.en.asciidoc b/doc/en/weechat_plugin_api.en.asciidoc
index d8210cdb0..94ad92e0d 100644
--- a/doc/en/weechat_plugin_api.en.asciidoc
+++ b/doc/en/weechat_plugin_api.en.asciidoc
@@ -1598,7 +1598,11 @@ C examples:
 ----
 /* examples with English locale */
 
-char *str = weechat_string_format_size (0);  /* str == "0 byte" */
+char *str = weechat_string_format_size (0);  /* str == "0 bytes" */
+/* ... */
+free (str);
+
+char *str = weechat_string_format_size (1);  /* str == "1 byte" */
 /* ... */
 free (str);
 
@@ -1606,11 +1610,11 @@ char *str = weechat_string_format_size (200);  /* str == "200 bytes" */
 /* ... */
 free (str);
 
-char *str = weechat_string_format_size (1536);  /* str == "1.5 KB" */
+char *str = weechat_string_format_size (15200);  /* str == "15.2 KB" */
 /* ... */
 free (str);
 
-char *str = weechat_string_format_size (2097152);  /* str == "2 MB" */
+char *str = weechat_string_format_size (2097152);  /* str == "2.10 MB" */
 /* ... */
 free (str);
 ----
diff --git a/doc/fr/weechat_plugin_api.fr.asciidoc b/doc/fr/weechat_plugin_api.fr.asciidoc
index 56644bd5d..fceecf8b9 100644
--- a/doc/fr/weechat_plugin_api.fr.asciidoc
+++ b/doc/fr/weechat_plugin_api.fr.asciidoc
@@ -1632,15 +1632,19 @@ char *str = weechat_string_format_size (0);  /* str == "0 octet" */
 /* ... */
 free (str);
 
+char *str = weechat_string_format_size (1);  /* str == "1 octet" */
+/* ... */
+free (str);
+
 char *str = weechat_string_format_size (200);  /* str == "200 octets" */
 /* ... */
 free (str);
 
-char *str = weechat_string_format_size (1536);  /* str == "1.5 Ko" */
+char *str = weechat_string_format_size (15200);  /* str == "15.2 Ko" */
 /* ... */
 free (str);
 
-char *str = weechat_string_format_size (2097152);  /* str == "2 Mo" */
+char *str = weechat_string_format_size (2097152);  /* str == "2.10 Mo" */
 /* ... */
 free (str);
 ----
diff --git a/doc/it/weechat_plugin_api.it.asciidoc b/doc/it/weechat_plugin_api.it.asciidoc
index 4f4daea90..5dfe9a22d 100644
--- a/doc/it/weechat_plugin_api.it.asciidoc
+++ b/doc/it/weechat_plugin_api.it.asciidoc
@@ -1650,7 +1650,11 @@ Esempi in C:
 ----
 /* esempi in lingua inglese */
 
-char *str = weechat_string_format_size (0);  /* str == "0 byte" */
+char *str = weechat_string_format_size (0);  /* str == "0 bytes" */
+/* ... */
+free (str);
+
+char *str = weechat_string_format_size (1);  /* str == "1 byte" */
 /* ... */
 free (str);
 
@@ -1658,11 +1662,11 @@ char *str = weechat_string_format_size (200);  /* str == "200 bytes" */
 /* ... */
 free (str);
 
-char *str = weechat_string_format_size (1536);  /* str == "1.5 KB" */
+char *str = weechat_string_format_size (15200);  /* str == "15.2 KB" */
 /* ... */
 free (str);
 
-char *str = weechat_string_format_size (2097152);  /* str == "2 MB" */
+char *str = weechat_string_format_size (2097152);  /* str == "2.10 MB" */
 /* ... */
 free (str);
 ----
diff --git a/doc/ja/weechat_plugin_api.ja.asciidoc b/doc/ja/weechat_plugin_api.ja.asciidoc
index f50f3118c..e3b889f6b 100644
--- a/doc/ja/weechat_plugin_api.ja.asciidoc
+++ b/doc/ja/weechat_plugin_api.ja.asciidoc
@@ -1594,7 +1594,11 @@ C 言語での使用例:
 ----
 /* examples with English locale */
 
-char *str = weechat_string_format_size (0);  /* str == "0 byte" */
+char *str = weechat_string_format_size (0);  /* str == "0 bytes" */
+/* ... */
+free (str);
+
+char *str = weechat_string_format_size (1);  /* str == "1 byte" */
 /* ... */
 free (str);
 
@@ -1602,11 +1606,11 @@ char *str = weechat_string_format_size (200);  /* str == "200 bytes" */
 /* ... */
 free (str);
 
-char *str = weechat_string_format_size (1536);  /* str == "1.5 KB" */
+char *str = weechat_string_format_size (15200);  /* str == "15.2 KB" */
 /* ... */
 free (str);
 
-char *str = weechat_string_format_size (2097152);  /* str == "2 MB" */
+char *str = weechat_string_format_size (2097152);  /* str == "2.10 MB" */
 /* ... */
 free (str);
 ----