diff --git a/packages/basemap/setup.py b/packages/basemap/setup.py
index 69b23963c..2e105ed56 100644
--- a/packages/basemap/setup.py
+++ b/packages/basemap/setup.py
@@ -111,7 +111,7 @@ def run(self):
     library_dirs.append(os.path.join(geos_install_prefix, "lib"))
     library_dirs.append(os.path.join(geos_install_prefix, "lib64"))
     runtime_library_dirs = library_dirs
-    if os.name == "nt":
+    if os.name == "nt" or sys.platform == "cygwin":
         # On Windows:
         # - DLLs get installed under `bin`.
         # - We need to inject later the DLL in the wheel using `data_files`.
@@ -119,7 +119,7 @@ def run(self):
         #   `distutils` bug (http://bugs.python.org/issue2437).
         library_dirs.append(os.path.join(geos_install_prefix, "bin"))
         runtime_library_dirs = []
-        dlls = glob.glob(os.path.join(geos_install_prefix, "*", "geos_c.dll"))
+        dlls = glob.glob(os.path.join(geos_install_prefix, "*", "*geos_c*.dll"))
         if dlls:
             data_files.append(("../..", sorted(dlls)))