diff --git a/js/src/jit/JitOptions.cpp b/js/src/jit/JitOptions.cpp
index daae3d53b5..7521a9faee 100644
--- a/js/src/jit/JitOptions.cpp
+++ b/js/src/jit/JitOptions.cpp
@@ -96,7 +96,7 @@ DefaultJitOptions::DefaultJitOptions()
     SET_DEFAULT(disableGvn, false);
 
     // Toggles whether inlining is globally disabled.
-    SET_DEFAULT(disableInlining, false);
+    SET_DEFAULT(disableInlining, true);
 
     // Toggles whether loop invariant code motion is globally disabled.
     SET_DEFAULT(disableLicm, false);