diff --git a/cpu/decoder.cpp b/cpu/decoder.cpp
index 4830dc4..73587f2 100644
--- a/cpu/decoder.cpp
+++ b/cpu/decoder.cpp
@@ -432,7 +432,7 @@ void Cpu::executeInstruction()
           mcycles = 4;
           break;
         case 0xF8: // LD HL, SP + e8
-          add16_8(state.SP, state.SP, readPC8());
+          add16_8(state.HL, state.SP, readPC8());
           state.zero = false;
           mcycles = 3;
           break;