diff --git a/microscope/_wrappers/asdk.py b/microscope/_wrappers/asdk.py
index 287b408f..fc4737e5 100644
--- a/microscope/_wrappers/asdk.py
+++ b/microscope/_wrappers/asdk.py
@@ -26,10 +26,11 @@
 
 
 if os.name in ("nt", "ce"):
-    SDK = ctypes.WinDLL("ASDK")
+    _libname = "ASDK"
 else:
-    # Not actually tested yet
-    SDK = ctypes.CDLL("libasdk.so")
+    _libname = "libasdk.so"  # Not actually tested yet
+
+SDK = ctypes.CDLL(_libname)
 
 
 class DM(ctypes.Structure):