diff --git a/src/help.c b/src/help.c
index 286f79a..d129f9b 100644
--- a/src/help.c
+++ b/src/help.c
@@ -146,13 +146,15 @@ static const char *help_text[] = {
 
 
 /************************************************************************
-*                    Help text function definitions                     *
+*                     Help text function definition                     *
 ************************************************************************/
 
 // This function is documented in the file "help.h"
 
 
 /***********************************************************************/
+// show_help: Show instructions on how to play the game
+
 void show_help (void)
 {
     int curpage = 0;
@@ -249,7 +251,6 @@ void show_help (void)
 		default:
 		    waddch(curwin, '^' | curattr);
 		    waddch(curwin, *s  | curattr);
-		    break;
 		}
 		break;
 
@@ -315,14 +316,12 @@ void show_help (void)
 		default:
 		    waddch(curwin, '~' | curattr);
 		    waddch(curwin, *s  | curattr);
-		    break;
 		}
 		break;
 
 	    default:
 		// Print the character
 		waddch(curwin, *s | curattr);
-		break;
 	    }
 
 	    s++;
diff --git a/src/trader.c b/src/trader.c
index 0b98d02..8d70e40 100644
--- a/src/trader.c
+++ b/src/trader.c
@@ -188,6 +188,8 @@ int main (int argc, char *argv[])
 
 
 /***********************************************************************/
+// process_cmdline: Process command line arguments
+
 void process_cmdline (int argc, char *argv[])
 {
     int c;
@@ -268,6 +270,8 @@ void process_cmdline (int argc, char *argv[])
 
 
 /***********************************************************************/
+// show_version: Show program version information
+
 void show_version (void)
 {
     printf("\
@@ -289,6 +293,8 @@ NO WARRANTY, to the extent permitted by law; see the License for details.\n\
 
 
 /***********************************************************************/
+// show_usage: Show command line usage information
+
 void show_usage (int status)
 {
     const char *pn = program_name();
@@ -338,6 +344,8 @@ playing that game.  If GAME is not specified, start a new game.\n\n\
 
 
 /***********************************************************************/
+// init_program: Initialise program-wide functions
+
 void init_program (void)
 {
     // Initialise the random number generator
@@ -355,6 +363,8 @@ void init_program (void)
 
 
 /***********************************************************************/
+// end_program: Deinitialise program-wide functions
+
 void end_program (void)
 {
     end_screen();