diff --git a/contrib/curve.c b/contrib/curve.c
index 6a4ba06ce..50f5c9dc1 100644
--- a/contrib/curve.c
+++ b/contrib/curve.c
@@ -200,7 +200,7 @@ get_input_num(char *name, int defaultval, int helpnum, int minval, int maxval, i
 
     for (;;) {
 	printf("\nPlease enter %s (default = %d) -> ", name, defaultval);
-	scanf("%s", str);
+	scanf("%79s", str);
 
 	if (str[0] == 'x') return 1;
 
@@ -224,7 +224,7 @@ get_input_yn(char *question, char defval, int helpnum)
 
     for (;;) {
 	printf("\n%s? (y/n/?) -> ", question);
-	scanf("%s", str);
+	scanf("%79s", str);
 
 	if (str[0] == '?') showhelp(helpnum);
 	else if (str[0] == 'y' || str[0] == 'n') return str[0];
@@ -384,7 +384,7 @@ void gettextures(void)
         int huh;
         for (i = 0; i<4; i++)
         {
-            huh = fscanf(fp,"%s %s",c1,c2);
+            huh = fscanf(fp,"%255s %255s",c1,c2);
             if (huh == 2)
             {
                 if (strcmp(c1,"TOP") == 0) sprintf(toptex,"mtrl/%s",c2);
@@ -532,7 +532,7 @@ int main(int argc, char *argv[])
 	    do {
 		okay=0;
 		printf("\nPlease enter filename for your curve -> ");
-		scanf("%s",str);
+		scanf("%79s",str);
 		if (str[0]=='?')
 		    showhelp(16);
 		else
diff --git a/putt/hole.c b/putt/hole.c
index 881fa5cad..0a668aeb1 100644
--- a/putt/hole.c
+++ b/putt/hole.c
@@ -72,7 +72,7 @@ static void hole_init_rc(const char *filename)
             /* Read the list. */
 
             while (fs_gets(buff, sizeof (buff), fin) &&
-                   sscanf(buff, "%s %s %d %s",
+                   sscanf(buff, "%255s %255s %d %255s",
                           hole_v[count].file,
                           hole_v[count].back,
                           &hole_v[count].par,
diff --git a/share/mapc.c b/share/mapc.c
index b675ed8cf..9198e24f8 100644
--- a/share/mapc.c
+++ b/share/mapc.c
@@ -842,7 +842,7 @@ static void read_obj(struct s_base *fp, const char *name, int mi)
         {
             if (strncmp(line, "usemtl", 6) == 0)
             {
-                sscanf(line + 6, "%s", mtrl);
+                sscanf(line + 6, "%255s", mtrl);
                 mi = read_mtrl(fp, mtrl);
             }
 
@@ -989,7 +989,7 @@ static int map_token(fs_file fin, int pi, char key[MAXSTR], char val[MAXSTR])
                    "( %f %f %f ) "
                    "( %f %f %f ) "
                    "( %f %f %f ) "
-                   "%s %f %f %f %f %f %d",
+               "%255s %f %f %f %f %f %d",
                    &x0, &y0, &z0,
                    &x1, &y1, &z1,
                    &x2, &y2, &z2,
diff --git a/share/solid_base.c b/share/solid_base.c
index d0ffed547..ba79836d1 100644
--- a/share/solid_base.c
+++ b/share/solid_base.c
@@ -970,7 +970,7 @@ int mtrl_read(struct b_mtrl *mp, const char *name)
 
                     p += 6;
 
-                    while (sscanf(p, "%s%n", word, &n) > 0)
+                    while (sscanf(p, "%255s%n", word, &n) > 0)
                     {
                         for (i = 0; i < ARRAYSIZE(mtrl_flags); i++)
                             if (strcmp(word, mtrl_flags[i].name) == 0)