diff --git a/src/db.c b/src/db.c
index baa8dae..7ccdb1f 100644
--- a/src/db.c
+++ b/src/db.c
@@ -190,7 +190,7 @@ void get_task(int id, task_t* t) {
     // t->id will be (-1) if not found
 }
 
-int list_tasks() {
+int list_tasks(bool show_completed) {
     sqlite3* db = get_db();
     sqlite3_stmt *stmt;
 
@@ -211,12 +211,12 @@ int list_tasks() {
         //* Warning: t just lives here (particularly t.text)
 
         if (t.done) {
-            printf(BOLD GREEN);
+            if (show_completed) {
+                printf(BOLD GREEN "[%d]" RESET " %s\n", t.id, t.text);
+            }
         } else {
-            printf(BOLD YELLOW);
+            printf(BOLD YELLOW "[%d]" RESET " %s\n", t.id, t.text);
         }
-        
-        printf("[%d]" RESET " %s\n", t.id, t.text);
     }
 
     sqlite3_finalize(stmt);
diff --git a/src/include/db.h b/src/include/db.h
index 6ec3702..0d2e2cc 100644
--- a/src/include/db.h
+++ b/src/include/db.h
@@ -38,7 +38,7 @@ void get_task(int id, task_t* t);
 /*
 Liste les tâches dans un format prédéfini
 */
-int list_tasks();
+int list_tasks(bool show_completed);
 
 /*
 Renvoie un identifiant de tâche encore non utilisé
diff --git a/src/main.c b/src/main.c
index 6abb2db..5132eb7 100644
--- a/src/main.c
+++ b/src/main.c
@@ -10,11 +10,12 @@
 
 void help(char* name) {
     printf(BLUE "\t-- TaKl " VERSION " --\n" RESET);
-    printf("Utilisation: %s ( list | info | add | rm | done )\n", name);
+    printf("Utilisation: %s ( list | add | info | rm | done )\n", name);
+    printf("\tlist [-a:voir les tâches complétées]\n");
     printf("\tadd <task> [date]\n");
     printf("\tFormat de la date:\n");
     printf("\t\tRelatif: min+%%d, h+%%d, j+%%d\n");
-    printf("\t\tAbsolu:  dd/mm (pas de changement d'année pour l'instant\n");
+    printf("\t\tAbsolu:  dd/mm (pas de changement d'année pour l'instant)\n");
     printf("\tinfo <id1> <id2> ...\n");
     printf("\tdone <id1> <id2> ...\n");
     printf("\trm   <id1> <id2> ...\n");
@@ -187,7 +188,7 @@ int main(int argc, char* argv[]) {
     if (!strcmp(argv[1], "add")) {
         return add(argc, argv);
     } else if (!strcmp(argv[1], "list")) {
-        return list_tasks();
+        return list_tasks(argc > 2 && !strcmp(argv[2], "-a"));
     } else if (!strcmp(argv[1], "info")) {
         return info(argc, argv);
     } else if (!strcmp(argv[1], "done")) {