diff --git a/src/vm/interp/vm_tgf_c.cpp b/src/vm/interp/vm_tgf_c.cpp
index 2ea7f8e..5109b91 100644
--- a/src/vm/interp/vm_tgf_c.cpp
+++ b/src/vm/interp/vm_tgf_c.cpp
@@ -3148,7 +3148,7 @@ private:
         *NEXT_PC = *PC + 2;
         // execute instruction
         if(rd) {
-        	uint8_t offs = *(X+2) + uimm;
+        	uint32_t offs = *(X+2) + uimm;
         	*(X+rd) = (int32_t)readSpace4(traits::MEM, offs);
         }
         else raise(0, 2);