diff --git a/src/client.c b/src/client.c
index dda1f92..fe654db 100644
--- a/src/client.c
+++ b/src/client.c
@@ -329,7 +329,7 @@ Atom wm_client_get_atom(Wm *wm, Client *c, const char *name, unsigned char **ato
 
 Client* wm_client_get_dir_rel_c(Client *c, int dir)
 {
-    DEBUG_PRINT("%s c: %p\n", __func__, c)
+    DEBUG_PRINT("%s c: %p\n", __func__, (void*)c)
 
     if (!c)
         return NULL;
@@ -391,7 +391,7 @@ Client* wm_client_get_dir_rel_c(Client *c, int dir)
 
 ret:
     wm_ptrarray_free(&client_nodes);
-    DEBUG_PRINT("%s returning %p\n", __func__, ret);
+    DEBUG_PRINT("%s returning %p\n", __func__, (void*)ret);
     return ret;
 }
 
@@ -444,7 +444,7 @@ void wm_monitor_clients_border(Wm *wm, Monitor *m)
 
     for (size_t i = 0; i < clients.size; i++) {
         Client *client = ((TreeNode*)clients.ptrs[i])->client;
-        DEBUG_PRINT("monitor border c: %p\n", client)
+        DEBUG_PRINT("monitor border c: %p\n", (void*)client)
         DEBUG_PRINT("monitor border c window: %ld\n", client->window)
         wm_client_border(wm, client);
     }
diff --git a/src/wm.c b/src/wm.c
index 1ba7e5f..a0d000a 100644
--- a/src/wm.c
+++ b/src/wm.c
@@ -230,7 +230,7 @@ void wm_switch_ws(Wm *wm, size_t ws)
     int wscc = 0;
     Client *c;
 
-    DEBUG_PRINT("switching to ws %d, clients:", ws);
+    DEBUG_PRINT("switching to ws %ld, clients:", ws);
     wm_treenode_print(wm->smon->workspaces[ws].tree);
 
     PtrArray current_ws_clients = wm_treenode_find_client_nodes_ptr(
@@ -488,7 +488,7 @@ void wm_exit(Wm *wm)
             for (size_t k = 0; k < clients.size; k++) {
                 Client *c = ((TreeNode*)clients.ptrs[k])->client;
                 XKillClient(wm->display, c->window);
-                DEBUG_PRINT("freeing client %p\n", c);
+                DEBUG_PRINT("freeing client %p\n", (void*)c);
                 wm_client_free(wm, c);
             }
             wm_ptrarray_free(&clients);