diff --git a/org.eclipse.wildwebdeveloper/src/org/eclipse/wildwebdeveloper/debug/AbstractDebugAdapterLaunchShortcut.java b/org.eclipse.wildwebdeveloper/src/org/eclipse/wildwebdeveloper/debug/AbstractDebugAdapterLaunchShortcut.java
index 274046145d..54c5abc4c9 100644
--- a/org.eclipse.wildwebdeveloper/src/org/eclipse/wildwebdeveloper/debug/AbstractDebugAdapterLaunchShortcut.java
+++ b/org.eclipse.wildwebdeveloper/src/org/eclipse/wildwebdeveloper/debug/AbstractDebugAdapterLaunchShortcut.java
@@ -64,7 +64,7 @@ protected AbstractDebugAdapterLaunchShortcut(String launchConfigTypeId, String[]
 	public boolean canLaunch(File file) {
 		return file.exists() &&
 			Arrays.stream(contentTypeIds).map(Platform.getContentTypeManager()::getContentType)
-				.anyMatch(type -> type.isAssociatedWith(file.getName()));
+				.anyMatch(type -> type != null && type.isAssociatedWith(file.getName()));
 	}
 
 	public boolean canLaunchResource(IResource resource) {
@@ -244,4 +244,4 @@ private boolean match(ILaunchConfiguration launchConfig, File selectedFile) {
 		}
 	}
 
-}
\ No newline at end of file
+}