diff --git a/plugins/channelrx/demoddatv/leansdr/dsp.h b/plugins/channelrx/demoddatv/leansdr/dsp.h
index e6f924d6c..d763cb18f 100644
--- a/plugins/channelrx/demoddatv/leansdr/dsp.h
+++ b/plugins/channelrx/demoddatv/leansdr/dsp.h
@@ -303,8 +303,8 @@ struct wgn_c : runnable
 
             do
             {
-                x = 2 * drand48() - 1;
-                y = 2 * drand48() - 1;
+                x = 2 * rand_compat() - 1;
+                y = 2 * rand_compat() - 1;
                 r2 = x * x + y * y;
             } while (r2 == 0 || r2 >= 1);
 
diff --git a/plugins/channelrx/demoddatv/leansdr/dvbs2.h b/plugins/channelrx/demoddatv/leansdr/dvbs2.h
index 2906c66d5..b9f4fe0e1 100644
--- a/plugins/channelrx/demoddatv/leansdr/dvbs2.h
+++ b/plugins/channelrx/demoddatv/leansdr/dvbs2.h
@@ -782,7 +782,7 @@ struct s2_frame_receiver : runnable
             // is at same level as during steady-state demodulation.
             // This has no effect if the first detection is successful.
             float duty_factor = 5;
-            discard = modcod_info::MAX_SYMBOLS_PER_FRAME * omega0 * (duty_factor+drand48()-0.5);
+            discard = modcod_info::MAX_SYMBOLS_PER_FRAME * omega0 * (duty_factor+rand_compat()-0.5);
         }
     }
 
diff --git a/plugins/channelrx/demoddatv/leansdr/math.h b/plugins/channelrx/demoddatv/leansdr/math.h
index 0d33c552a..f0e257381 100644
--- a/plugins/channelrx/demoddatv/leansdr/math.h
+++ b/plugins/channelrx/demoddatv/leansdr/math.h
@@ -188,6 +188,15 @@ inline float fmodfs(float v, float m)
     return (v>=m/2) ? v-m : (v<-m/2) ? v+m : v;
 }
 
+inline double rand_compat()
+{
+#ifdef WIN32
+    return double(rand())/RAND_MAX;
+#else
+    return drand48();
+#endif
+}
+
 // Simple statistics
 
 template<typename T>