diff --git a/backend/drm/drm.c b/backend/drm/drm.c
index 47bd4e3a..63a6e2da 100644
--- a/backend/drm/drm.c
+++ b/backend/drm/drm.c
@@ -459,7 +459,7 @@ static bool wlr_drm_connector_set_mode(struct wlr_output *output,
 	if (!crtc) {
 		return false;
 	}
-	wlr_log(L_DEBUG, "%s: crtc=%ju ovr=%jd pri=%jd cur=%jd", conn->output.name,
+	wlr_log(L_DEBUG, "%s: crtc=%td ovr=%td pri=%td cur=%td", conn->output.name,
 		crtc - drm->crtcs,
 		crtc->overlay ? crtc->overlay - drm->overlay_planes : -1,
 		crtc->primary ? crtc->primary - drm->primary_planes : -1,
diff --git a/types/wlr_keyboard.c b/types/wlr_keyboard.c
index b0dc97aa..29552eb4 100644
--- a/types/wlr_keyboard.c
+++ b/types/wlr_keyboard.c
@@ -215,13 +215,13 @@ void wlr_keyboard_set_keymap(struct wlr_keyboard *kb,
 	}
 	kb->keymap_fd = os_create_anonymous_file(kb->keymap_size);
 	if (kb->keymap_fd < 0) {
-		wlr_log(L_ERROR, "creating a keymap file for %lu bytes failed", kb->keymap_size);
+		wlr_log(L_ERROR, "creating a keymap file for %zu bytes failed", kb->keymap_size);
 		goto err;
 	}
 	void *ptr = mmap(NULL, kb->keymap_size,
 		PROT_READ | PROT_WRITE, MAP_SHARED, kb->keymap_fd, 0);
 	if (ptr == (void*)-1) {
-		wlr_log(L_ERROR, "failed to mmap() %lu bytes", kb->keymap_size);
+		wlr_log(L_ERROR, "failed to mmap() %zu bytes", kb->keymap_size);
 		goto err;
 	}
 	strcpy(ptr, keymap_str);