diff --git a/lumps/dmxgus/gen-ultramid b/lumps/dmxgus/gen-ultramid
index 2cc170f0..a8a37bfb 100755
--- a/lumps/dmxgus/gen-ultramid
+++ b/lumps/dmxgus/gen-ultramid
@@ -155,7 +155,7 @@ def mapping_for_size(size):
 	return result
 
 if len(sys.argv) != 2:
-	print "Usage: %s <filename>" % sys.argv[0]
+	print("Usage: %s <filename>" % sys.argv[0])
 	sys.exit(1)
 
 mappings = (
diff --git a/lumps/genmidi/a2i_file.py b/lumps/genmidi/a2i_file.py
index d19a4382..4f4e5bbf 100644
--- a/lumps/genmidi/a2i_file.py
+++ b/lumps/genmidi/a2i_file.py
@@ -238,6 +238,6 @@ def read(filename):
 
 if __name__ == "__main__":
 	for filename in sys.argv[1:]:
-		print filename
-		print read(filename)
+		print(filename)
+		print(read(filename))
 
diff --git a/lumps/genmidi/genmidi.py b/lumps/genmidi/genmidi.py
index 65871856..06648c02 100644
--- a/lumps/genmidi/genmidi.py
+++ b/lumps/genmidi/genmidi.py
@@ -205,11 +205,11 @@ if __name__ == "__main__":
 			fixed_note = instrument.fixed_note
 
 			if fixed_note is not None:
-				print "%i (fixed note: %i):" % (i, fixed_note)
+				print("%i (fixed note: %i):" % (i, fixed_note))
 			else:
-				print "%i:" % i
+				print("%i:" % i)
 
-			print "\tVoice 1: %s" % instrument.voice1
+			print("\tVoice 1: %s" % instrument.voice1)
 			if instrument.voice2 is not None:
-				print "\tVoice 2: %s" % instrument.voice2
+				print("\tVoice 2: %s" % instrument.voice2)
 
diff --git a/lumps/genmidi/sbi_file.py b/lumps/genmidi/sbi_file.py
index 9e128a69..adfb8e80 100644
--- a/lumps/genmidi/sbi_file.py
+++ b/lumps/genmidi/sbi_file.py
@@ -84,6 +84,6 @@ def write(filename, data):
 
 if __name__ == "__main__":
 	for filename in sys.argv[1:]:
-		print filename
-		print read(filename)
+		print(filename)
+		print(read(filename))