diff --git a/src/lib.rs b/src/lib.rs
index 9f0e249c..bfa49668 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -102,17 +102,20 @@ impl Build {
             // Nothing related to zlib please
             .arg("no-comp")
             .arg("no-zlib")
-            .arg("no-zlib-dynamic")
-            // MUSL doesn't implement some of the libc functions that the async
-            // stuff depends on, and we don't bind to any of that in any case.
-            .arg("no-async");
+            .arg("no-zlib-dynamic");
 
-        if target.contains("musl") || target.contains("windows") {
+        if target.contains("musl") || target.contains("mingw") {
             // This actually fails to compile on musl (it needs linux/version.h
             // right now) but we don't actually need this most of the time.
             configure.arg("no-engine");
         }
 
+        if target.contains("musl") {
+            // MUSL doesn't implement some of the libc functions that the async
+            // stuff depends on, and we don't bind to any of that in any case.
+            configure.arg("no-async");
+        }
+
         // On Android it looks like not passing no-stdio may cause a build
         // failure (#13), but most other platforms need it for things like
         // loading system certificates so only disable it on Android.