diff --git a/src/color.c b/src/color.c
index 21c7539e..7ad223e6 100644
--- a/src/color.c
+++ b/src/color.c
@@ -119,7 +119,7 @@ void update_color(void)
 
     /* if we haven't found a match, use the override string */
     if (colorstrings == NULL && syntaxstr != NULL) {
-	for (tmpsyntax = syntaxes; tmpsyntax != NULL; 
+	for (tmpsyntax = syntaxes; tmpsyntax != NULL;
 	     tmpsyntax = tmpsyntax->next) {
 	    if (!strcasecmp(tmpsyntax->desc, syntaxstr))
 		colorstrings = tmpsyntax->color;
diff --git a/src/files.c b/src/files.c
index 05ff4885..b6af395b 100644
--- a/src/files.c
+++ b/src/files.c
@@ -2661,7 +2661,7 @@ char *do_browser(const char *inpath)
 	case NANO_PREVPAGE_FKEY:
 	case '-': /* Pico compatibility */
 	    if (selected >= (editwinrows + lineno % editwinrows) * width)
-		selected -= (editwinrows + lineno % editwinrows) * width; 
+		selected -= (editwinrows + lineno % editwinrows) * width;
 	    else
 		selected = 0;
 	    break;
diff --git a/src/proto.h b/src/proto.h
index 00e12be0..082e8d3f 100644
--- a/src/proto.h
+++ b/src/proto.h
@@ -114,10 +114,10 @@ extern const shortcut *currshortcut;
 
 #ifdef HAVE_REGEX_H
 extern regex_t search_regexp;
-extern regmatch_t regmatches[10];  
+extern regmatch_t regmatches[10];
 #ifdef ENABLE_COLOR
 extern regex_t syntaxfile_regexp;
-extern regmatch_t synfilematches[1];  
+extern regmatch_t synfilematches[1];
 #endif /* ENABLE_COLOR */
 #endif /* HAVE_REGEX_H */
 
@@ -412,7 +412,7 @@ char *get_history_newer(historyheadtype *h);
 char *get_history_completion(historyheadtype *h, char *s);
 void free_history(historyheadtype *h);
 #ifdef ENABLE_NANORC
-void load_history(void);  
+void load_history(void);
 void save_history(void);
 #endif
 #endif
diff --git a/src/search.c b/src/search.c
index 0102cfe3..f0d187f4 100644
--- a/src/search.c
+++ b/src/search.c
@@ -318,7 +318,7 @@ int findnextstr(int can_display_wrap, int wholeword, const filestruct
 
 	/* Original start line reached. */
 	if (fileptr == begin)
-	    search_last_line = 1;
+	    search_last_line = TRUE;
 	rev_start = fileptr->data;
 #ifndef NANO_SMALL
 	if (ISSET(REVERSE_SEARCH))
@@ -389,7 +389,7 @@ int do_search(void)
 	update_history(&search_history, answer);
 #endif
 
-    search_last_line = 0;
+    search_last_line = FALSE;
     didfind = findnextstr(TRUE, FALSE, current, current_x, answer, FALSE);
     edit_refresh();
     placewewant = xplustabs();
@@ -440,7 +440,7 @@ int do_research(void)
 	    return -1;
 #endif
 
-	search_last_line = 0;
+	search_last_line = FALSE;
 	didfind = findnextstr(TRUE, FALSE, current, current_x, last_search, FALSE);
 	edit_refresh();
 	placewewant = xplustabs();
@@ -926,7 +926,7 @@ int do_find_bracket(void)
     /* We constructed regexp_pat to be a valid expression. */
     assert(regexp_compiled);
 
-    search_last_line = 0;
+    search_last_line = FALSE;
     while (TRUE) {
 	if (findnextstr(FALSE, FALSE, current, current_x, regexp_pat, FALSE) != 0) {
 	    /* Found identical bracket. */