diff --git a/src/gba/GBA-arm.cpp b/src/gba/GBA-arm.cpp
index 656d5df0..af964c7f 100644
--- a/src/gba/GBA-arm.cpp
+++ b/src/gba/GBA-arm.cpp
@@ -1528,7 +1528,7 @@ static INSN_REGPARM void arm121(uint32_t opcode)
 #define ADDRESS_PREDEC (reg[base].I - offset)
 #define ADDRESS_PREINC (reg[base].I + offset)
 
-#define OP_STR CPUWriteMemory(address, reg[dest].I)
+#define OP_STR CPUWriteMemory(address, reg[dest].I + (dest == 15 ? 4 : 0))
 #define OP_STRH CPUWriteHalfWord(address, reg[dest].W.W0)
 #define OP_STRB CPUWriteByte(address, reg[dest].B.B0)
 #define OP_LDR reg[dest].I = CPUReadMemory(address)