diff --git a/thunderbird.spec b/thunderbird.spec
index 4ca6cff..0ba4ac4 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -213,6 +213,7 @@ Obsoletes:      thunderbird-lightning-gdata <= 1:3.3.0.14
 BuildRequires:  rust
 BuildRequires:  cargo
 BuildRequires:  clang-devel
+BuildRequires:  python3-devel
 %if !0%{?use_bundled_cbindgen}
 BuildRequires:  cbindgen
 %endif