diff --git a/lib/adapters/AbstractAdapter.js b/lib/adapters/AbstractAdapter.js
index e2c52a25..e870a130 100644
--- a/lib/adapters/AbstractAdapter.js
+++ b/lib/adapters/AbstractAdapter.js
@@ -27,6 +27,9 @@ class AbstractAdapter extends AbstractReaderWriter {
 			throw new TypeError("Class 'AbstractAdapter' is abstract");
 		}
 		super();
+		if (!virBasePath.endsWith("/")) {
+			throw new Error(`Virtual base path must end with a slash: ${virBasePath}`);
+		}
 		this._virBasePath = virBasePath;
 		this._virBaseDir = virBasePath.slice(0, -1);
 		this._excludes = excludes;
diff --git a/test/lib/adapters/Memory_read.js b/test/lib/adapters/Memory_read.js
index d3da89ae..3df4ef31 100644
--- a/test/lib/adapters/Memory_read.js
+++ b/test/lib/adapters/Memory_read.js
@@ -62,7 +62,7 @@ test("glob resources from application.a w/o virtual base path prefix", async (t)
 test("glob virtual directory w/o virtual base path prefix", async (t) => {
 	// TODO: Add similar test (globbing on empty directory) for FS RL
 	const readerWriter = resourceFactory.createAdapter({
-		virBasePath: "/app/one/two"
+		virBasePath: "/app/one/two/"
 	});
 
 	const resources = await readerWriter.byGlob("/*", {nodir: false});
@@ -72,7 +72,7 @@ test("glob virtual directory w/o virtual base path prefix", async (t) => {
 test("glob virtual directory w/o virtual base path prefix and multiple patterns", async (t) => {
 	// TODO: Add similar test (globbing on empty directory) for FS RL
 	const readerWriter = resourceFactory.createAdapter({
-		virBasePath: "/app/one/two"
+		virBasePath: "/app/one/two/"
 	});
 
 	const resources = await readerWriter.byGlob([
@@ -94,7 +94,7 @@ test("glob virtual directory w/ virtual base path prefix", async (t) => {
 
 test("glob virtual directory w/o virtual base path prefix and nodir: true", async (t) => {
 	const readerWriter = resourceFactory.createAdapter({
-		virBasePath: "/app/one/two"
+		virBasePath: "/app/one/two/"
 	});
 
 	const resources = await readerWriter.byGlob("/*", {nodir: true});