diff --git a/.gitignore b/.gitignore
index 549378b09bee54abe2ac19cecb86fcff2f8b4f0a..b9be357648cbea9387d2c282770727e057ad3a02 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,6 +13,8 @@
 *.notes
 .nfs*
 src/JSBSim*
+src/FGComm*
+src/Trim*
 
 # Generated Files
 *.tgz