diff --git a/src/compiler/commandLineParser.ts b/src/compiler/commandLineParser.ts
index 8ffae3b8680..6105ae32ba5 100644
--- a/src/compiler/commandLineParser.ts
+++ b/src/compiler/commandLineParser.ts
@@ -1295,12 +1295,10 @@ namespace ts {
                 flags: watchRecursivePattern.test(spec) ? WatchDirectoryFlags.Recursive : WatchDirectoryFlags.None
             };
         }
-        else if (isImplicitGlob(spec)) {
+        if (isImplicitGlob(spec)) {
             return { key: spec, flags: WatchDirectoryFlags.Recursive };
         }
-        else {
-            return undefined;
-        }
+        return undefined;
     }
 
     /**
diff --git a/src/compiler/core.ts b/src/compiler/core.ts
index 0164d0f4333..1eb0614a8a3 100644
--- a/src/compiler/core.ts
+++ b/src/compiler/core.ts
@@ -1515,7 +1515,9 @@ namespace ts {
             return undefined;
         }
 
-        return "^(" + pattern + (usage === "exclude" ? ")($|/)" : ")$");
+        // If excluding, match "foo/bar/baz...", but if including, only allow "foo".
+        const terminator = usage === "exclude" ? "($|/)" : "$";
+        return `^(${pattern})${terminator}`;
     }
 
     /**
@@ -1711,9 +1713,7 @@ namespace ts {
                 ? absolute
                 : removeTrailingDirectorySeparator(getDirectoryPath(absolute));
         }
-        else {
-            return absolute.substring(0, absolute.lastIndexOf(directorySeparator, wildcardOffset));
-        }
+        return absolute.substring(0, absolute.lastIndexOf(directorySeparator, wildcardOffset));
     }
 
     export function ensureScriptKind(fileName: string, scriptKind?: ScriptKind): ScriptKind {