diff --git a/toolchain/finish-setup.xml b/toolchain/finish-setup.xml
index 0b6aefc9e..eef2be1ec 100644
--- a/toolchain/finish-setup.xml
+++ b/toolchain/finish-setup.xml
@@ -10,6 +10,7 @@
 <set name="NOCONSOLE" value="${NEEDS_NC}" if="no_console"/>
 <set name="RPI" value="-rpi" if="rpi"/>
 <set name="APIFP" value="-hfp" if="hardfp"/>
+<set name="CPPIA_NO_JIT" value="1" if="emscripten"/>
 
 <set name="STD_MODULE_LINK" value="dll"/>
 
diff --git a/tools/hxcpp/BuildTool.hx b/tools/hxcpp/BuildTool.hx
index 22f85d898..8e20a1469 100644
--- a/tools/hxcpp/BuildTool.hx
+++ b/tools/hxcpp/BuildTool.hx
@@ -2418,6 +2418,8 @@ class BuildTool
          path = path.split("\\").join("/");
          var filename = "";
          var parts = path.split("/");
+         if (!FileSystem.exists(path))
+            Log.error("File does not exist:" + path);
          if (!FileSystem.isDirectory(path))
             filename = parts.pop();