3 files changed, 3 insertions, 3 deletions
diff --git a/lib/system/gc.nim b/lib/system/gc.nim
index 1aea9d27b..911b49fdb 100644
--- a/lib/system/gc.nim
+++ b/lib/system/gc.nim
@@ -244,7 +244,7 @@ proc asgnRefNoCycle(dest: PPointer, src: pointer) {.compilerproc, inline,
 
 proc unsureAsgnRef(dest: PPointer, src: pointer) {.compilerproc.} =
   # unsureAsgnRef updates the reference counters only if dest is not on the
-  # stack. It is used by the code generator if it cannot decide wether a
+  # stack. It is used by the code generator if it cannot decide whether a
   # reference is in the stack or not (this can happen for var parameters).
   if not isOnStack(dest):
     if src != nil: incRef(usrToCell(src))
diff --git a/lib/system/gc2.nim b/lib/system/gc2.nim
index cdf472b43..4da9b4f94 100644
--- a/lib/system/gc2.nim
+++ b/lib/system/gc2.nim
@@ -240,7 +240,7 @@ proc asgnRefNoCycle(dest: PPointer, src: pointer) {.compilerproc, inline,
 
 proc unsureAsgnRef(dest: PPointer, src: pointer) {.compilerproc.} =
   # unsureAsgnRef marks 'src' as grey only if dest is not on the
-  # stack. It is used by the code generator if it cannot decide wether a
+  # stack. It is used by the code generator if it cannot decide whether a
   # reference is in the stack or not (this can happen for var parameters).
   if src != nil:
     let s = usrToCell(src)
diff --git a/lib/system/mmdisp.nim b/lib/system/mmdisp.nim
index d2edacce7..ae30dbc73 100644
--- a/lib/system/mmdisp.nim
+++ b/lib/system/mmdisp.nim
@@ -42,7 +42,7 @@ type
 # CPU this needs to be changed:
 const
   PageShift = when defined(cpu16): 8 else: 12 # \
-    # my tests showed no improvments for using larger page sizes.
+    # my tests showed no improvements for using larger page sizes.
   PageSize = 1 shl PageShift
   PageMask = PageSize-1