diff --git a/linux.spec b/linux.spec
index 149f794..02e78b3 100644
--- a/linux.spec
+++ b/linux.spec
@@ -12,7 +12,7 @@ a = Analysis(['gui.py'],
                 ('fonts', 'fonts'),
                 ('ui', 'ui')
 	     ],
-             hiddenimports=[],
+             hiddenimports=['PyQt5.sip'],
              hookspath=[],
              runtime_hooks=[],
              excludes=[],
diff --git a/requirements.txt b/requirements.txt
index 6971249..533d572 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 reportlab>=3.5.67
 PyMuPDF>=1.18.13
 PyQt5>=5.15.4
+PyQt5.Sip