diff --git a/inform7/Tests/Test Problems/PM_ObjectIsAction2.txt b/inform7/Tests/Test Problems/PM_ObjectIsAction2.txt
new file mode 100644
index 0000000000..50bd94fb35
--- /dev/null
+++ b/inform7/Tests/Test Problems/PM_ObjectIsAction2.txt	
@@ -0,0 +1,2 @@
+Foo is a room.
+Zog is initially examining yourself.
diff --git a/inform7/Tests/Test Problems/_Results_Ideal/PM_ObjectIsAction2.txt b/inform7/Tests/Test Problems/_Results_Ideal/PM_ObjectIsAction2.txt
new file mode 100644
index 0000000000..2f4eb40d99
--- /dev/null
+++ b/inform7/Tests/Test Problems/_Results_Ideal/PM_ObjectIsAction2.txt	
@@ -0,0 +1,11 @@
+Inform 7 v10.1.0 has started.
+I've now read your source text, which is 9 words long.
+I've also read Basic Inform by Graham Nelson, which is 7691 words long.
+I've also read English Language by Graham Nelson, which is 2328 words long.
+I've also read Standard Rules by Graham Nelson, which is 32132 words long.
+Problem__ PM_ObjectIsAction2
+  >--> You wrote 'Zog is initially examining yourself' (source text, line 2):
+    but you need to add 'the action of' after 'initially', in order to clarify
+    that you mean this sentence to set a variable to an action (if in fact
+    that's what you mean to do!).
+Inform 7 has finished.
diff --git a/inform7/assertions-module/Chapter 4/Assertions.w b/inform7/assertions-module/Chapter 4/Assertions.w
index 3108ddbf9c..bbfc20ae85 100644
--- a/inform7/assertions-module/Chapter 4/Assertions.w	
+++ b/inform7/assertions-module/Chapter 4/Assertions.w	
@@ -1093,12 +1093,20 @@ opera about a dog, "Collared Is Bowser".)
 			"and it would only confuse things if we used it for a value as well.");
 		Problems::issue_problem_end();
 	} else {
-		Problems::Using::assertion_problem(Task::syntax_tree(), _p_(PM_ObjectIsAction),
-			"that is putting the definition back to front",
-			"since I need these categorisations of actions to take the form 'Kissing a "
-			"woman is love', not 'Love is kissing a woman'. (This is really because it "
-			"is better style: love might be many other things too, and we don't want to "
-			"imply that the present definition is all-inclusive.)");
+		parse_node *v = current_sentence->down;
+		if ((Node::is(v, VERB_NT)) &&
+			(Annotations::read_int(v, verbal_certainty_ANNOT) == INITIALLY_CE))
+			Problems::Using::assertion_problem(Task::syntax_tree(), _p_(PM_ObjectIsAction2),
+				"you need to add 'the action of' after 'initially'",
+				"in order to clarify that you mean this sentence to set a variable "
+				"to an action (if in fact that's what you mean to do!).");
+		else
+			Problems::Using::assertion_problem(Task::syntax_tree(), _p_(PM_ObjectIsAction),
+				"that is putting the definition back to front",
+				"since I need these categorisations of actions to take the form 'Kissing a "
+				"woman is love', not 'Love is kissing a woman'. (This is really because it "
+				"is better style: love might be many other things too, and we don't want to "
+				"imply that the present definition is all-inclusive.)");
 	}
 
 @h Case 33. "Every K is every L."