diff --git a/cmake/tools/SetupWebKit.cmake b/cmake/tools/SetupWebKit.cmake
index 46444d0789..46d80a7db4 100644
--- a/cmake/tools/SetupWebKit.cmake
+++ b/cmake/tools/SetupWebKit.cmake
@@ -87,6 +87,11 @@ if(LINUX AND ABI STREQUAL "musl")
   set(WEBKIT_SUFFIX "-musl")
 endif()
 
+# Baseline builds require a WebKit compiled without AVX instructions
+if(ENABLE_BASELINE AND WEBKIT_ARCH STREQUAL "amd64")
+  set(WEBKIT_SUFFIX "${WEBKIT_SUFFIX}-baseline")
+endif()
+
 if(DEBUG)
   set(WEBKIT_SUFFIX "${WEBKIT_SUFFIX}-debug")
 elseif(ENABLE_LTO)