1 files changed, 1 insertions, 5 deletions
diff --git a/src/modules.js b/src/modules.js
index cc9ca549..76e5db11 100644
--- a/src/modules.js
+++ b/src/modules.js
@@ -285,11 +285,7 @@ var Functions = {
     } else {
       if (!singlePhase) return 'NO_INDEX'; // Should not index functions in post
       ret = this.indexedFunctions[ident];
-      if (!ret) {
-        ret = this.nextIndex;
-        this.nextIndex += FUNCTION_POINTER_ALIGNMENT;
-        this.indexedFunctions[ident] = ret;
-      }
+      assert(ret);
       ret = ret.toString();
     }
     if (SIDE_MODULE && sig) { // sig can be undefined for the GL library functions