diff --git a/core/rec-x64/rec_x64.cpp b/core/rec-x64/rec_x64.cpp
index 7045c2fca..1418c626e 100644
--- a/core/rec-x64/rec_x64.cpp
+++ b/core/rec-x64/rec_x64.cpp
@@ -379,7 +379,7 @@ BlockCompiler* compiler;
 
 void ngen_Compile(RuntimeBlockInfo* block, bool force_checks, bool reset, bool staging, bool optimise)
 {
-	verify(emit_FreeSpace() >= 64 * 1024);
+	verify(emit_FreeSpace() >= 16 * 1024);
 
 	compiler = new BlockCompiler();