diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h
index 9d916bad64..05a1912f8a 100644
--- a/include/tcg/tcg.h
+++ b/include/tcg/tcg.h
@@ -232,7 +232,7 @@ typedef struct TCGPool {
 
 #define TCG_POOL_CHUNK_SIZE 32768
 
-#define TCG_MAX_TEMPS 1024
+#define TCG_MAX_TEMPS 512
 #define TCG_MAX_INSNS 512
 
 /* when the size of the arguments of a called function is smaller than