diff --git a/lmathlib.c b/lmathlib.c
index a6b13f96..87e7462a 100644
--- a/lmathlib.c
+++ b/lmathlib.c
@@ -704,35 +704,35 @@ static int math_log10 (lua_State *L) {
 
 
 static const luaL_Reg mathlib[] = {
-  {"abs",   math_abs},
-  {"acos",  math_acos},
-  {"asin",  math_asin},
-  {"atan",  math_atan},
-  {"ceil",  math_ceil},
-  {"cos",   math_cos},
-  {"deg",   math_deg},
-  {"exp",   math_exp},
+  {"abs", math_abs},
+  {"acos", math_acos},
+  {"asin", math_asin},
+  {"atan", math_atan},
+  {"ceil", math_ceil},
+  {"cos", math_cos},
+  {"deg", math_deg},
+  {"exp", math_exp},
   {"tointeger", math_toint},
   {"floor", math_floor},
-  {"fmod",   math_fmod},
+  {"fmod", math_fmod},
   {"frexp", math_frexp},
-  {"ult",   math_ult},
+  {"ult", math_ult},
   {"ldexp", math_ldexp},
-  {"log",   math_log},
-  {"max",   math_max},
-  {"min",   math_min},
-  {"modf",   math_modf},
-  {"rad",   math_rad},
-  {"sin",   math_sin},
-  {"sqrt",  math_sqrt},
-  {"tan",   math_tan},
+  {"log", math_log},
+  {"max", math_max},
+  {"min", math_min},
+  {"modf", math_modf},
+  {"rad", math_rad},
+  {"sin", math_sin},
+  {"sqrt", math_sqrt},
+  {"tan", math_tan},
   {"type", math_type},
 #if defined(LUA_COMPAT_MATHLIB)
   {"atan2", math_atan},
-  {"cosh",   math_cosh},
-  {"sinh",   math_sinh},
-  {"tanh",   math_tanh},
-  {"pow",   math_pow},
+  {"cosh", math_cosh},
+  {"sinh", math_sinh},
+  {"tanh", math_tanh},
+  {"pow", math_pow},
   {"log10", math_log10},
 #endif
   /* placeholders */
diff --git a/loslib.c b/loslib.c
index fe9295c7..111ac2f8 100644
--- a/loslib.c
+++ b/loslib.c
@@ -416,17 +416,17 @@ static int os_exit (lua_State *L) {
 
 
 static const luaL_Reg syslib[] = {
-  {"clock",     os_clock},
-  {"date",      os_date},
-  {"difftime",  os_difftime},
-  {"execute",   os_execute},
-  {"exit",      os_exit},
-  {"getenv",    os_getenv},
-  {"remove",    os_remove},
-  {"rename",    os_rename},
+  {"clock", os_clock},
+  {"date", os_date},
+  {"difftime", os_difftime},
+  {"execute", os_execute},
+  {"exit", os_exit},
+  {"getenv", os_getenv},
+  {"remove", os_remove},
+  {"rename", os_rename},
   {"setlocale", os_setlocale},
-  {"time",      os_time},
-  {"tmpname",   os_tmpname},
+  {"time", os_time},
+  {"tmpname", os_tmpname},
   {NULL, NULL}
 };
 
diff --git a/manual/manual.of b/manual/manual.of
index e2d1a651..e3c7cd25 100644
--- a/manual/manual.of
+++ b/manual/manual.of
@@ -6071,8 +6071,8 @@ In both cases,
 the function pushes onto the stack the final value associated
 with @id{tname} in the registry.
 
-Usage note: Beware the use of the return value of this function to
-conditionally initializes the new metatable
+Usage note: Beware the use of the return value of this function
+to conditionally initialize the new metatable
 (e.g., by adding metamethods to it).
 If the initialization raises an error,
 the metatable will not be properly initialized,