diff --git a/src/interfaces/ecpg/compatlib/.cvsignore b/src/interfaces/ecpg/compatlib/.cvsignore
new file mode 100644
index 00000000000..f23ac9c15d2
--- /dev/null
+++ b/src/interfaces/ecpg/compatlib/.cvsignore
@@ -0,0 +1,2 @@
+libecpg_compatdll.def
+blibecpg_compatdll.def
diff --git a/src/interfaces/ecpg/ecpglib/.cvsignore b/src/interfaces/ecpg/ecpglib/.cvsignore
new file mode 100644
index 00000000000..56561f59164
--- /dev/null
+++ b/src/interfaces/ecpg/ecpglib/.cvsignore
@@ -0,0 +1,2 @@
+libecpgdll.def
+blibecpgdll.def
diff --git a/src/interfaces/ecpg/pgtypeslib/.cvsignore b/src/interfaces/ecpg/pgtypeslib/.cvsignore
new file mode 100644
index 00000000000..9003a0fdaf0
--- /dev/null
+++ b/src/interfaces/ecpg/pgtypeslib/.cvsignore
@@ -0,0 +1,2 @@
+libpgtypesdll.def
+blibpgtypesdll.def