diff --git a/doc/cc65.sgml b/doc/cc65.sgml
index 48b6fcc8d..8fbcfc05a 100644
--- a/doc/cc65.sgml
+++ b/doc/cc65.sgml
@@ -54,6 +54,24 @@ The compiler may be called as follows:
 ---------------------------------------------------------------------------
 Usage: cc65 [options] file
 Short options:
+  -A                    Strict ANSI mode
+  -Cl                   Make local variables static
+  -Dsym[=defn]          Define a symbol
+  -I dir                Set an include directory search path
+  -O                    Optimize code
+  -Oi                   Optimize code, inline more code
+  -Or                   Enable register variables
+  -Os                   Inline some known functions
+  -T                    Include source as comment
+  -V                    Print the compiler version number
+  -W                    Suppress warnings
+  -d                    Debug mode
+  -g                    Add debug info to object file
+  -h                    Help (this text)
+  -j                    Default characters are signed
+  -o name               Name the output file
+  -t sys                Set the target system
+  -v                    Increase verbosity
 
 Long options:
   --add-source          Include source as comment