diff --git a/core/modules/filters.js b/core/modules/filters.js
index 06fa603b5..e0a2779e3 100644
--- a/core/modules/filters.js
+++ b/core/modules/filters.js
@@ -95,10 +95,12 @@ function parseFilterOperation(operators,filterString,p) {
 			if(nextBracketPos === -1) {
 				throw "Missing closing bracket in filter expression";
 			}
-			if(!operator.regexp) {
+			if(operator.regexp) {
+				operand.text = "";
+			} else {
 				operand.text = filterString.substring(p,nextBracketPos);
-				operator.operands.push(operand);
 			}
+			operator.operands.push(operand);
 			p = nextBracketPos + 1;
 		}
 
diff --git a/editions/test/tiddlers/tests/test-filters.js b/editions/test/tiddlers/tests/test-filters.js
index 05c5e3c83..12e24bcc5 100644
--- a/editions/test/tiddlers/tests/test-filters.js
+++ b/editions/test/tiddlers/tests/test-filters.js
@@ -256,6 +256,16 @@ Tests the filtering mechanism.
 			expect(wiki.filterTiddlers("[modifier/Jo/]").join(",")).toBe("TiddlerOne,$:/TiddlerTwo,Tiddler Three,a fourth tiddler,one");
 			expect(console.log).toHaveBeenCalledWith("WARNING: Filter", "modifier", "has a deprecated regexp operand", /Jo/);
 		});
+
+		it("should handle regular expression operands without crashing", function() {
+			spyOn(console, 'log');
+			// We don't really care about the results. Just don't get RSoD.
+			expect(() => wiki.filterTiddlers("[all/current/]")).not.toThrow();
+			expect(() => wiki.filterTiddlers("[prefix/anything/]")).not.toThrow();
+			expect(() => wiki.filterTiddlers("[title/anything/]")).not.toThrow();
+			expect(() => wiki.filterTiddlers("[/anything/]")).not.toThrow();
+			expect(() => wiki.filterTiddlers("[//]")).not.toThrow();
+		});
 	
 		it("should handle the prefix operator", function() {
 			expect(wiki.filterTiddlers("[prefix[Tiddler]]").join(",")).toBe("TiddlerOne,Tiddler Three");