diff --git a/src/internal.h b/src/internal.h
index 6d7587c8c..c7f37ed58 100644
--- a/src/internal.h
+++ b/src/internal.h
@@ -218,7 +218,7 @@ typedef void (APIENTRY * PFN_vkVoidFunction)(void);
 // Swaps the provided pointers
 #define _GLFW_SWAP_POINTERS(x, y) \
     {                             \
-        void* t;                  \
+        __typeof__(x) t;          \
         t = x;                    \
         x = y;                    \
         y = t;                    \