diff --git a/src/include/port/cygwin.h b/src/include/port/cygwin.h
index f07c07eeff6..dd87087a92b 100644
--- a/src/include/port/cygwin.h
+++ b/src/include/port/cygwin.h
@@ -19,4 +19,4 @@
 #define PGDLLIMPORT __declspec (dllimport)
 #endif
 
-#define PGDLLEXPORT __declspec (dllimport)
+#define PGDLLEXPORT
diff --git a/src/include/port/win32.h b/src/include/port/win32.h
index da5d6614df8..7338b115c46 100644
--- a/src/include/port/win32.h
+++ b/src/include/port/win32.h
@@ -61,7 +61,7 @@
 #ifdef _MSC_VER
 #define PGDLLEXPORT __declspec (dllexport)
 #else
-#define PGDLLEXPORT __declspec (dllimport)
+#define PGDLLEXPORT
 #endif
 #else							/* not CYGWIN, not MSVC, not MingW */
 #define PGDLLIMPORT