diff --git a/bsd-user/main.c b/bsd-user/main.c
index 5f790b2..6018a41 100644
--- a/bsd-user/main.c
+++ b/bsd-user/main.c
@@ -866,7 +866,7 @@ int main(int argc, char **argv)
         int mask;
         const CPULogItem *item;
 
-        mask = cpu_str_to_log_mask(r);
+        mask = cpu_str_to_log_mask(log_mask);
         if (!mask) {
             printf("Log items (comma separated):\n");
             for (item = cpu_log_items; item->mask != 0; item++) {
diff --git a/darwin-user/main.c b/darwin-user/main.c
index a6dc859..35196a1 100644
--- a/darwin-user/main.c
+++ b/darwin-user/main.c
@@ -819,7 +819,7 @@ int main(int argc, char **argv)
         int mask;
         CPULogItem *item;
 
-        mask = cpu_str_to_log_mask(r);
+        mask = cpu_str_to_log_mask(log_mask);
         if (!mask) {
             printf("Log items (comma separated):\n");
             for (item = cpu_log_items; item->mask != 0; item++) {
diff --git a/linux-user/main.c b/linux-user/main.c
index db5577b..289054b 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -3030,7 +3030,7 @@ int main(int argc, char **argv, char **envp)
         int mask;
         const CPULogItem *item;
 
-        mask = cpu_str_to_log_mask(r);
+        mask = cpu_str_to_log_mask(log_mask);
         if (!mask) {
             printf("Log items (comma separated):\n");
             for (item = cpu_log_items; item->mask != 0; item++) {