diff --git a/qemu-options.hx b/qemu-options.hx
index ef60730e4794fad73dbff76009ec74c4ddee9284..677c550103c7bc0efdd7455b2e5b1a0d243649c0 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -937,8 +937,8 @@ a lot of bandwidth at the expense of quality.
 Disable adaptive encodings. Adaptive encodings are enabled by default.
 An adaptive encoding will try to detect frequently updated screen regions,
 and send updates in these regions using a lossy encoding (like JPEG).
-This can be really helpfull to save bandwidth when playing videos. Disabling
-adaptive encodings allow to restore the original static behavior of encodings
+This can be really helpful to save bandwidth when playing videos. Disabling
+adaptive encodings allows to restore the original static behavior of encodings
 like Tight.
 
 @end table
diff --git a/savevm.c b/savevm.c
index be44fdb4732717e24cef0d614511035dd391f982..f4ff1a1db443588a6e94c756f4d193253c4761fe 100644
--- a/savevm.c
+++ b/savevm.c
@@ -1008,7 +1008,7 @@ const VMStateInfo vmstate_info_buffer = {
 };
 
 /* unused buffers: space that was used for some fields that are
-   not usefull anymore */
+   not useful anymore */
 
 static int get_unused_buffer(QEMUFile *f, void *pv, size_t size)
 {
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 9172fc72799ffc2154ff117526de7219a2b010f5..a0ec6439da137a67eca191abd714574fd46d219d 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -1378,7 +1378,7 @@ void HELPER(set_cp15)(CPUState *env, uint32_t insn, uint32_t val)
             /* This may enable/disable the MMU, so do a TLB flush.  */
             tlb_flush(env, 1);
             break;
-        case 1: /* Auxiliary cotrol register.  */
+        case 1: /* Auxiliary control register.  */
             if (arm_feature(env, ARM_FEATURE_XSCALE)) {
                 env->cp15.c1_xscaleauxcr = val;
                 break;