diff --git a/mupen64plus-core/src/device/rcp/pi/pi_controller.c b/mupen64plus-core/src/device/rcp/pi/pi_controller.c
index 60ccaa5..6004a84 100644
--- a/mupen64plus-core/src/device/rcp/pi/pi_controller.c
+++ b/mupen64plus-core/src/device/rcp/pi/pi_controller.c
@@ -59,7 +59,7 @@ static void dma_pi_read(struct pi_controller* pi)
     const uint8_t* dram = (uint8_t*)pi->ri->rdram->dram;
 
     if ((length & 0x1) && length >= 0x7F)
-        length +=1;
+        length += 1;
     if (dram_addr & 0x7)
         length -= dram_addr & 0x7;
 
@@ -99,7 +99,7 @@ static void dma_pi_write(struct pi_controller* pi)
     uint8_t* dram = (uint8_t*)pi->ri->rdram->dram;
 
     if ((length & 0x1) && length >= 0x7F)
-        length +=1;
+        length += 1;
     if (dram_addr & 0x7)
         length -= dram_addr & 0x7;