diff --git a/csi.c b/csi.c
index b82b5c3b..e4a60eda 100644
--- a/csi.c
+++ b/csi.c
@@ -221,7 +221,7 @@ csi_dispatch(struct terminal *term, uint8_t final)
     int c = snprintf(log, sizeof(log), "CSI: ");
 
     for (size_t i = 0; i < term->vt.intermediates.idx; i++)
-        c += snprintf(&log[c], sizeof(log) - c, "%d", term->vt.intermediates.data[i]);
+        c += snprintf(&log[c], sizeof(log) - c, "%c", term->vt.intermediates.data[i]);
 
     for (size_t i = 0; i < term->vt.params.idx; i++){
         c += snprintf(&log[c], sizeof(log) - c, "%d",
diff --git a/vt.c b/vt.c
index 3a71c924..c7352b9b 100644
--- a/vt.c
+++ b/vt.c
@@ -560,7 +560,7 @@ esc_dispatch(struct terminal *term, uint8_t final)
     int c = snprintf(log, sizeof(log), "ESC: ");
 
     for (size_t i = 0; i < term->vt.intermediates.idx; i++)
-        c += snprintf(&log[c], sizeof(log) - c, "%d", term->vt.intermediates.data[i]);
+        c += snprintf(&log[c], sizeof(log) - c, "%c", term->vt.intermediates.data[i]);
 
     c += snprintf(&log[c], sizeof(log) - c, "%c", final);
     LOG_DBG("%s", log);