diff --git a/modulation/stereo_encoder.c b/modulation/stereo_encoder.c
index 3379af1..c7f5740 100644
--- a/modulation/stereo_encoder.c
+++ b/modulation/stereo_encoder.c
@@ -33,7 +33,7 @@ void init_stereo_encoder(StereoEncoder* st, uint8_t multiplier, Oscillator* osc,
 }
 
 #ifdef STEREO_SSB
-float stereo_encode(StereoEncoder* st, uint8_t enabled, float left, float right, firhilbf hilbert) {
+float stereo_encode(StereoEncoder* st, uint8_t enabled, float left, float right, firhilbf *hilbert) {
 #else
 float stereo_encode(StereoEncoder* st, uint8_t enabled, float left, float right) {
 #endif
@@ -47,7 +47,7 @@ float stereo_encode(StereoEncoder* st, uint8_t enabled, float left, float right)
 
 #ifdef STEREO_SSB
     float complex stereo_hilbert;
-    firhilbf_r2c_execute(hilbert, side, &stereo_hilbert);
+    firhilbf_r2c_execute(*hilbert, side, &stereo_hilbert);
     float signalx2cos = get_oscillator_cos_multiplier_ni(st->osc, st->multiplier * 2.0f);
 #endif
     
diff --git a/modulation/stereo_encoder.h b/modulation/stereo_encoder.h
index fc66ecb..04564c5 100644
--- a/modulation/stereo_encoder.h
+++ b/modulation/stereo_encoder.h
@@ -30,7 +30,7 @@ typedef struct
 void init_stereo_encoder(StereoEncoder *st, uint8_t multiplier, Oscillator *osc, float audio_volume, float pilot_volume);
 
 #ifdef STEREO_SSB
-float stereo_encode(StereoEncoder* st, uint8_t enabled, float left, float right, firhilbf hilbert);
+float stereo_encode(StereoEncoder* st, uint8_t enabled, float left, float right, firhilbf *hilbert);
 #else
 float stereo_encode(StereoEncoder* st, uint8_t enabled, float left, float right);
 #endif
diff --git a/src/fm95.c b/src/fm95.c
index 2ed71bc..3b2179d 100644
--- a/src/fm95.c
+++ b/src/fm95.c
@@ -238,7 +238,11 @@ int run_fm95(const FM95_Config config, FM95_Runtime* runtime) {
 				mod_r = apply_preemphasis(&runtime->preemp_r, mod_r);
 			}
 
+#ifdef STEREO_SSB
+			mpx = stereo_encode(&runtime->stencode, config.stereo, mod_l, mod_r, &runtime.hilbert);
+#else
 			mpx = stereo_encode(&runtime->stencode, config.stereo, mod_l, mod_r);
+#endif
 
 			if(rds_on) {
 				float rds_level = config.volumes.rds;