diff --git a/charset/utf8.c b/charset/utf8.c
index 3c777292..fe46cf98 100644
--- a/charset/utf8.c
+++ b/charset/utf8.c
@@ -267,7 +267,7 @@ void utf8_read_test(int line, char *input, int inlen, ...)
 	}
 	if (l != str[i]) {
 	    printf("%d: char %d came out as %08x, should be %08x\n",
-		    line, i, str[i], l);
+                   line, i, str[i], (unsigned)l);
 	    total_errs++;
 	}
     }
@@ -306,7 +306,7 @@ void utf8_write_test(int line, const long *input, int inlen, ...)
 	}
 	if (l != str[i]) {
 	    printf("%d: char %d came out as %08x, should be %08x\n",
-		    line, i, str[i], l);
+                   line, i, str[i], (unsigned)l);
 	    total_errs++;
 	}
     }
diff --git a/import.c b/import.c
index adf68777..88589a71 100644
--- a/import.c
+++ b/import.c
@@ -445,7 +445,7 @@ static struct openssh_pem_key *load_openssh_pem_key(const Filename *filename,
 		if (!strcmp(p, "ENCRYPTED"))
 		    ret->encrypted = TRUE;
 	    } else if (!strcmp(line, "DEK-Info")) {
-		int i, j, ivlen;
+		int i, ivlen;
 
 		if (!strncmp(p, "DES-EDE3-CBC,", 13)) {
 		    ret->encryption = OP_E_3DES;
@@ -459,6 +459,7 @@ static struct openssh_pem_key *load_openssh_pem_key(const Filename *filename,
 		}
 		p = strchr(p, ',') + 1;/* always non-NULL, by above checks */
 		for (i = 0; i < ivlen; i++) {
+                    unsigned j;
 		    if (1 != sscanf(p, "%2x", &j)) {
 			errmsg = "expected more iv data in DEK-Info";
 			goto error;
diff --git a/minibidi.c b/minibidi.c
index 8d78594d..2bdf4deb 100644
--- a/minibidi.c
+++ b/minibidi.c
@@ -2014,7 +2014,7 @@ int main(int argc, char **argv)
 	unsigned long chr = strtoul(argv[i], NULL, 0);
 	int type = getType(chr);
 	assert(typetoname[type].type == type);
-	printf("U+%04x: %s\n", chr, typetoname[type].name);
+	printf("U+%04x: %s\n", (unsigned)chr, typetoname[type].name);
     }
 
     return 0;
diff --git a/misc.c b/misc.c
index 734ea8b1..469e4aeb 100644
--- a/misc.c
+++ b/misc.c
@@ -157,7 +157,8 @@ int main(void)
             passes++;                                                   \
         } else {                                                        \
             printf("fail: %s(%s,%s)%s = %u, expected %u\n",             \
-                   #func, #string, #arg2, #suffix, ret, result);        \
+                   #func, #string, #arg2, #suffix, ret,                 \
+                   (unsigned)result);                                   \
             fails++;                                                    \
         }                                                               \
 } while (0)
diff --git a/pscp.c b/pscp.c
index 454ec084..210362df 100644
--- a/pscp.c
+++ b/pscp.c
@@ -1476,7 +1476,7 @@ int scp_get_sink_action(struct scp_sink_action *act)
 		act->action = SCP_SINK_ENDDIR;
 		return 0;
 	      case 'T':
-		if (sscanf(act->buf, "%ld %*d %ld %*d",
+		if (sscanf(act->buf, "%lu %*d %lu %*d",
 			   &act->mtime, &act->atime) == 2) {
 		    act->settime = 1;
 		    back->send(backhandle, "", 1);
diff --git a/terminal.c b/terminal.c
index f47fe1bd..ba9dd617 100644
--- a/terminal.c
+++ b/terminal.c
@@ -4327,7 +4327,7 @@ static void term_out(Terminal *term)
 			    for (i = 1; i < term->esc_nargs; i++) {
 				if (i != 1)
 				    strcat(term->id_string, ";");
-				sprintf(lbuf, "%d", term->esc_args[i]);
+				sprintf(lbuf, "%u", term->esc_args[i]);
 				strcat(term->id_string, lbuf);
 			    }
 			    strcat(term->id_string, "c");
diff --git a/windows/window.c b/windows/window.c
index 89ddb863..96600311 100644
--- a/windows/window.c
+++ b/windows/window.c
@@ -5199,8 +5199,8 @@ void write_clip(void *frontend, wchar_t * data, int *attr, int len, int must_des
 		multilen = WideCharToMultiByte(CP_ACP, 0, unitab+uindex, 1,
 					       NULL, 0, NULL, NULL);
 		if (multilen != 1) {
-		    blen = sprintf(before, "{\\uc%d\\u%d", multilen,
-				   udata[uindex]);
+		    blen = sprintf(before, "{\\uc%d\\u%d", (int)multilen,
+				   (int)udata[uindex]);
 		    alen = 1; strcpy(after, "}");
 		} else {
 		    blen = sprintf(before, "\\u%d", udata[uindex]);