diff --git a/src/plugins/e-acsl/scripts/e-acsl-gcc.sh b/src/plugins/e-acsl/scripts/e-acsl-gcc.sh
index a2061517b579317b47f94b3b2e526cec5d2bf9bf..22865148c51ae7db3e170d08c7c395eff3068682 100755
--- a/src/plugins/e-acsl/scripts/e-acsl-gcc.sh
+++ b/src/plugins/e-acsl/scripts/e-acsl-gcc.sh
@@ -86,10 +86,14 @@ Usage: e-acsl-gcc.sh [options] files
 Options:
     -h         show this help page
     -c         compile instrumented code
+    -l         pass additional options to the linker
+    -e         pass additional options to the pre-preprocessor
+    -E         pass additional arguments to the Frama-C pre-processor
     -p         output the generated code with rich formatting to STDOUT
     -o <file>  output the generated code to <file> [a.out.frama.c]
     -O <file>  output the generated executables to <file> [a.out, a.out.e-acsl]
     -M         maximise memory-related instrumentation
+    -g         always use GMP integers instead of C integral types
     -q         suppress any output except for errors and warnings
     -s <file>  redirect all output to <file>
     -P         compile executatle without debug features