diff --git a/parse.lex b/parse.lex
index 088a7e0e4..f609770fc 100644
--- a/parse.lex
+++ b/parse.lex
@@ -218,7 +218,7 @@ static void append() {
 	    yyerror("unable to allocate memory");
     }
 
-    /* Effeciently append the arg (with a leading space) */
+    /* Efficiently append the arg (with a leading space) */
     s = yylval.string + string_len;
     *s++ = ' ';
     (void) strcpy(s, yytext);
diff --git a/parse.yacc b/parse.yacc
index 41cdab273..c3d6c249b 100644
--- a/parse.yacc
+++ b/parse.yacc
@@ -496,7 +496,7 @@ static char *dotcat(s1, s2)
     if (s == NULL)
 	yyerror("unable to allocate memory");
 
-    /* cat s1.s2 -> s effeciently */
+    /* cat s1.s2 -> s efficient */
     (void) strcpy(s, s1);
     *(s + len1) = '.';
     (void) strcpy(s + len1 + 1, s2);