diff --git a/mesonbuild/backend/ninjabackend.py b/mesonbuild/backend/ninjabackend.py
index ab5bc4902..15f298b1e 100644
--- a/mesonbuild/backend/ninjabackend.py
+++ b/mesonbuild/backend/ninjabackend.py
@@ -516,7 +516,7 @@ int dummy;
                              [], False, '']
                         d.targets.append(i)
                     outdir = self.environment.get_shared_lib_dir()
-                elif isinstance(t, build.SharedLibrary):
+                elif isinstance(t, build.StaticLibrary):
                     outdir = self.environment.get_static_lib_dir()
                 elif isinstance(t, build.Executable):
                     outdir = self.environment.get_bindir()