diff --git a/constantine.nimble b/constantine.nimble
index 1dfb20ab..93c3a02d 100644
--- a/constantine.nimble
+++ b/constantine.nimble
@@ -255,7 +255,7 @@ proc genStaticLib(outdir, nimcache: string, extFlags = "") =
 
     let config = flags &
                  extFlags &
-                 releaseBuildOptions(bmDynamicLib)
+                 releaseBuildOptions(bmStaticLib)
 
     echo &"  compiler config: {config}"