diff --git a/man/sg.1.xml b/man/sg.1.xml
index 72bef700..8eab62fa 100644
--- a/man/sg.1.xml
+++ b/man/sg.1.xml
@@ -64,7 +64,7 @@
       <command>newgrp</command> and <command>sg</command> is that some
       shells treat <command>newgrp</command> specially, replacing themselves
       with a new instance of a shell that <command>newgrp</command> creates.
-      This doesn't happen with <command>sg</command>, so upon exit from a
+      This doesn't happen with <command>sg</command>, so upon exit from an
       <command>sg</command> command you are returned to your previous group
       ID.
     </para>
diff --git a/src/newgrp.c b/src/newgrp.c
index 055da7d3..e48b4d36 100644
--- a/src/newgrp.c
+++ b/src/newgrp.c
@@ -498,7 +498,7 @@ int main (int argc, char **argv)
 		if (argc > 0) {
 
 			/*
-			 * skip -c if specified so both forms work:
+			 * Skip -c if specified so both forms work:
 			 * "sg group -c command" (as in the man page) or
 			 * "sg group command" (as in the usage message).
 			 */