diff --git a/rednose/SConscript b/rednose/SConscript
index 07ec60e..398b4b4 100644
--- a/rednose/SConscript
+++ b/rednose/SConscript
@@ -34,7 +34,11 @@ libkf = env.SharedLibrary(f'{generated_folder}/libkf', lib_target)
 
 lenv = envCython.Clone()
 lenv["LINKFLAGS"] += [libkf[0].get_labspath()]
-lenv["LIBS"] = [common] + lenv["LIBS"]
+
+# for SWAGLOG support
+if common != "":
+  lenv["LIBS"] = ['zmq', common] + lenv["LIBS"]
+
 ekf_sym_so = lenv.Program('#rednose/helpers/ekf_sym_pyx.so', [ekf_sym_pyx, ekf_sym_cc, common_ekf])
 lenv.Depends(ekf_sym_so, libkf)