diff --git a/hw/gusemu.h b/hw/gusemu.h
index 34872aa101a8772f620fc23781dca1f59ef9937d..331bb6fec0036f979d4adf61df59258f5c2b6ec8 100644
--- a/hw/gusemu.h
+++ b/hw/gusemu.h
@@ -27,7 +27,7 @@
 
 /* data types (need to be adjusted if neither a VC6 nor a C99 compatible compiler is used) */
 
-#if defined _WIN32 && defined _MSC_VER /* doesnt support other win32 compilers yet, do it yourself... */
+#if defined _WIN32 && defined _MSC_VER /* doesn't support other win32 compilers yet, do it yourself... */
  typedef unsigned char GUSbyte;
  typedef unsigned short GUSword;
  typedef unsigned int GUSdword;
diff --git a/hw/rtl8139.c b/hw/rtl8139.c
index aa8ed0a919d8ef7ab3a0ce6e647fff0366d6413e..8aace9a4ec4cb057b8c698550f0f22bb3575a406 100644
--- a/hw/rtl8139.c
+++ b/hw/rtl8139.c
@@ -2662,7 +2662,7 @@ static void rtl8139_IntrStatus_write(RTL8139State *s, uint32_t val)
      * Computing if we miss an interrupt here is not that correct but
      * considered that we should have had already an interrupt
      * and probably emulated is slower is better to assume this resetting was
-     * done before testing on previous rtl8139_update_irq lead to IRQ loosing
+     * done before testing on previous rtl8139_update_irq lead to IRQ losing
      */
     rtl8139_set_next_tctr_time(s, qemu_get_clock_ns(vm_clock));
     rtl8139_update_irq(s);
diff --git a/hw/ssd0303.c b/hw/ssd0303.c
index 401fdf592a54259e65fa4bb0e7a271ebea3b6941..bcad7bf9229c9c4889bbf9b0e6d1792f44da6fc6 100644
--- a/hw/ssd0303.c
+++ b/hw/ssd0303.c
@@ -123,7 +123,7 @@ static int ssd0303_send(i2c_slave *i2c, uint8_t data)
             case 0xa7: /* Inverse on.  */
                 s->inverse = 1;
                 break;
-            case 0xa8: /* Set multipled ratio (Ignored).  */
+            case 0xa8: /* Set multiplied ratio (Ignored).  */
                 s->cmd_state = SSD0303_CMD_SKIP1;
                 break;
             case 0xad: /* DC-DC power control.  */