diff --git a/compress.c b/compress.c
index 4519b7a..d8de996 100644
--- a/compress.c
+++ b/compress.c
@@ -243,7 +243,7 @@ size_t unpack(uint8_t *packed, uint8_t *unpacked) {
 	printf("Backref (rotate) : %i\n", methoduse[5]);
 	printf("Backref (reverse): %i\n", methoduse[6]);
 	
-	printf("\nCompressed size:   % zd bytes\n", inpos);
+	printf("\nCompressed size:   %u bytes\n", inpos);
 #endif
 
 	return (size_t)outpos;
diff --git a/exhal.c b/exhal.c
index ec5af14..497bd61 100644
--- a/exhal.c
+++ b/exhal.c
@@ -52,7 +52,7 @@ int main (int argc, char **argv) {
 	fseek(outfile, 0, SEEK_SET);
 	fwrite((const void*)unpacked, 1, outputsize, outfile);
 	
-	printf("Uncompressed size: % zd bytes\n", outputsize);
+	printf("Uncompressed size: %zd bytes\n", outputsize);
 	
 	fclose(infile);
 	fclose(outfile);
diff --git a/inhal.c b/inhal.c
index 23d754e..16c04cc 100644
--- a/inhal.c
+++ b/inhal.c
@@ -76,7 +76,7 @@ int main (int argc, char **argv) {
 	fseek(infile, 0, SEEK_END);
 	inputsize = ftell(infile);
 	
-	printf("Uncompressed size: % zd bytes\n", inputsize);
+	printf("Uncompressed size: %zd bytes\n", inputsize);
 	
 	if (inputsize > DATA_SIZE) {
 		printf("Error: File must be a maximum of 65,536 bytes!\n");