diff --git a/polymer/eduke32/build/src/polymost.c b/polymer/eduke32/build/src/polymost.c
index 938d4ca52..1368eee07 100644
--- a/polymer/eduke32/build/src/polymost.c
+++ b/polymer/eduke32/build/src/polymost.c
@@ -3070,6 +3070,8 @@ void domost(float x0, float y0, float x1, float y1)
     float spx[4], /*spy[4],*/ cy[2], cv[2];
     int32_t i, j, k, z, ni, vcnt = 0, scnt, newi, dir, spt[4];
 
+    alpha = 0.f;
+
     if (x0 < x1)
     {
         dir = 1; //clip dmost (floor)
@@ -3457,6 +3459,8 @@ static void polymost_drawalls(int32_t bunch)
     static const int16_t zeropskyoff[MAXPSKYTILES] = { 0 };
     const int16_t *dapskyoff;
 
+    alpha = 0.f;
+
     sectnum = thesector[bunchfirst[bunch]]; sec = &sector[sectnum];
 
     //DRAW WALLS SECTION!
@@ -5736,6 +5740,8 @@ void polymost_dorotatesprite(int32_t sx, int32_t sy, int32_t z, int16_t a, int16
             z = zz;
         }
         while (z);
+
+        alpha = 0.f;
 #ifdef USE_OPENGL
         if (!nofog) bglDisable(GL_FOG);
         pow2xsplit = 0; drawpoly(px,py,n,method);