diff --git a/caps/include/nsScriptSecurityManager.h b/caps/include/nsScriptSecurityManager.h
index 01069d6f997..544970c7751 100644
--- a/caps/include/nsScriptSecurityManager.h
+++ b/caps/include/nsScriptSecurityManager.h
@@ -430,7 +430,7 @@ private:
     CreateCodebasePrincipal(nsIURI* aURI, nsIPrincipal** result);
 
     // This is just like the API method, but it doesn't check that the subject
-    // name is nonempty or aCertificate is non-null, and it doesn't change the
+    // name is non-empty or aCertificate is non-null, and it doesn't change the
     // certificate in the table (if any) in any way if aModifyTable is false.
     nsresult
     DoGetCertificatePrincipal(const nsACString& aCertFingerprint,
diff --git a/caps/src/nsPrincipal.cpp b/caps/src/nsPrincipal.cpp
index 97a399278ce..7ea579ba64a 100755
--- a/caps/src/nsPrincipal.cpp
+++ b/caps/src/nsPrincipal.cpp
@@ -248,7 +248,7 @@ nsPrincipal::Equals(nsIPrincipal *aOther, PRBool *aResult)
 
       // If either subject name is empty, just let the result stand (so that
       // nsScriptSecurityManager::SetCanEnableCapability works), but if they're
-      // both nonempty, only claim equality if they're equal.
+      // both non-empty, only claim equality if they're equal.
       if (*aResult && !mCert->subjectName.IsEmpty()) {
         // Check the other principal's subject name
         aOther->GetSubjectName(str);