diff --git a/CMakeLists.txt b/CMakeLists.txt
index 863f4b8..c640d19 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -82,7 +82,9 @@ endif()
 ################################################################
 if(EMSCRIPTEN)
     # extra flags to ensure runtime methods are exported
-    set(EMS"SHELL: -s EXTRA_EXPORTED_RUNTIME_METHODS=['FS','PATH','loadDynamicLibrary']")
+    set(EMS
+        "SHELL: -s EXTRA_EXPORTED_RUNTIME_METHODS=['FS','PATH','loadDynamicLibrary']"
+    )
     target_compile_options(xplugin_host INTERFACE ${EMS})
     target_link_options(xplugin_host INTERFACE ${EMS})