diff --git a/src/vim9compile.c b/src/vim9compile.c
index fa02871..338415e 100644
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -4917,9 +4917,10 @@
 	    goto erret;
     ufunc->uf_args_visible = ufunc->uf_args.ga_len;
 
-    // Compiling a function in an interface is done to get the function type.
-    // No code is actually compiled.
-    if (ufunc->uf_class != NULL && IS_INTERFACE(ufunc->uf_class))
+    // Compiling an abstract method or a function in an interface is done to
+    // get the function type.  No code is actually compiled.
+    if (ufunc->uf_class != NULL && (IS_INTERFACE(ufunc->uf_class)
+						|| IS_ABSTRACT_METHOD(ufunc)))
     {
 	ufunc->uf_def_status = UF_NOT_COMPILED;
 	ret = OK;