diff --git a/mailimporter.spec b/mailimporter.spec
index d598765..491cd3d 100644
--- a/mailimporter.spec
+++ b/mailimporter.spec
@@ -43,6 +43,8 @@ BuildRequires:  pkgconfig(Qt5Test) >= 5.4.0
 BuildRequires:  pkgconfig(Qt5UiTools) >= 5.4.0
 BuildRequires:  pkgconfig(Qt5Widgets) >= 5.4.0
 BuildRequires:  pkgconfig(Qt5Xml) >= 5.4.0
+# It can only build on the same platforms as Qt Webengine
+ExclusiveArch:  %ix86 x86_64 %arm aarch64 mips mips64
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 
 %description