diff --git a/G1BILLETS.sh b/G1BILLETS.sh
index 6325165..c8659c0 100755
--- a/G1BILLETS.sh
+++ b/G1BILLETS.sh
@@ -17,6 +17,10 @@ STYLE="$3"
 
 [[ $MONTANT == "" ]] && MONTANT="___"
 [[ $UNIQID == "" ]] && UNIQID=$(date -u +%s%N | cut -b1-13)$RANDOM
+# CHECK IF $STYLE IMAGES EXIST
+[[ ! -f ${MY_PATH}/images/fond${STYLE}.jpg ]] && exit 1
+[[ ! -f ${MY_PATH}/images/g1${STYLE}.png ]] && exit 1
+[[ ! -f ${MY_PATH}/images/logo${STYLE}.png ]] && exit 1
 
 # CREATION DE 6 BILLETS DE $MONTANT DU
 NBbillets=6