diff --git a/src/core.c b/src/core.c
index 16b13934e..2f0c9dea3 100644
--- a/src/core.c
+++ b/src/core.c
@@ -158,6 +158,7 @@
 #include <string.h>                 // Required for: strrchr(), strcmp(), strlen()
 #include <time.h>                   // Required for: time() [Used in InitTimer()]
 #include <math.h>                   // Required for: tan() [Used in BeginMode3D()]
+#include <errno.h>
 
 #include <sys/stat.h>               // Required for: stat() [Used in GetFileModTime()]
 
@@ -4602,7 +4603,7 @@ static void EventThreadSpawn(char *device)
     fd = open(device, O_RDONLY | O_NONBLOCK);
     if (fd < 0)
     {
-        TRACELOG(LOG_WARNING, "RPI: Failed to open input device (error: %d)", device, worker->fd);
+        TRACELOG(LOG_WARNING, "RPI: Failed to open input device %s (error: %d)", device, errno);
         return;
     }
     worker->fd = fd;