diff --git a/qucs.spec b/qucs.spec
index 1c611f5..8f0b18c 100644
--- a/qucs.spec
+++ b/qucs.spec
@@ -12,7 +12,7 @@ Source0: https://github.com/Qucs/%{name}/archive/%{name}-%{version_no_tilde}/%{n
 # Desktop file categories must terminate with a semicolon, bug #1424234
 Patch0:  qucs-0.0.19-fix-desktop-file.patch
 # https://github.com/Qucs/qucs/pull/1069
-Patch1:  qucs-0.0.20-rc2-gcc13.patch.patch
+Patch1:  qucs-0.0.20-rc2-gcc13.patch
 
 BuildRequires: make
 BuildRequires: autoconf