diff --git a/build/run-bitten.sh b/build/run-bitten.sh
index fcfe0399..50dc2374 100755
--- a/build/run-bitten.sh
+++ b/build/run-bitten.sh
@@ -198,7 +198,7 @@ append ""
 
 append "[emscripten]"
 if em++ --version >/dev/null 2>&1; then
-    append "version = $(version | sed -ne 's/.*emcc.* \([0-9.]\{1,\}\).*/\1/p')"
+    append "version = $(em++ --version | sed -ne 's/.*emcc.* \([0-9.]\{1,\}\).*/\1/p')"
 fi
 append ""