diff --git a/scripts/frama-c-lustrec.sh b/scripts/frama-c-lustrec.sh
index 1577af1453eec82994cb15f60833ac3fddce08a1..346ad14b76ce0c8147bce7b21eb3fbdb373d300d 100755
--- a/scripts/frama-c-lustrec.sh
+++ b/scripts/frama-c-lustrec.sh
@@ -2,7 +2,7 @@
 
 # simple shell script to launch Frama-C with the right options to
 # prove C files generated by LustreC.
-# look at the usage function for more explanations
+# see the usage function for more explanations
 
 # usage function
 usage () {
@@ -11,12 +11,13 @@ usage () {
     echo "  - [-h|--help]           | prints this message and exits"
     echo "  - [-g|--gui]            | use Frama-C GUI"
     echo "  - [-n|--no-strategies]  | do not use LustreC custom WP strategies"
-    echo "  - [-t|--timeout T]      | set provers timeout to T"
+    echo "  - [-t|--timeout T]      | set provers timeout to T (default to 30)"
     echo ""
     echo "  Frama-C is launched with the following options:"
     echo "  -wp                                               | use WP plugin"
     echo "  -wp-model ref,real                                | use ref memory model and ideal floats as reals model"
     echo "  -wp-prover alt-ergo,z3,cvc4                       | use Alt-Ergo, Z3 and CVC4 SMT solvers"
+    echo "  -wp-timeout $TIMEOUT                              | set solvers timeout, default to 30s"
     echo "  -wp-par 16                                        | use 16 jobs at most"
     echo "  -wp-no-warn-memory-model                          | dismiss various memory model related warnings"
     echo "  -wp-auto LustreC:Transitions,LustreC:MemoryPacks  | use custom proof strategies if -n is not used"
@@ -68,6 +69,7 @@ done
 frama-c${GUI} -wp \
        -wp-model ref,real \
        -wp-prover alt-ergo,z3,cvc4 \
+       -wp-timeout $TIMEOUT \
        -wp-par 16 \
        -wp-no-warn-memory-model \
        ${STRATEGIES} \