diff --git a/src/p_setup.c b/src/p_setup.c
index a2b73752a..6319e13f9 100644
--- a/src/p_setup.c
+++ b/src/p_setup.c
@@ -1138,6 +1138,8 @@ static void P_WriteConstant(INT32 constant, char **target, const char *desc, UIN
 {
 	char buffer[12];
 	size_t len;
+	(void)desc;
+	(void)id;
 
 	sprintf(buffer, "%d", constant);
 	len = strlen(buffer) + 1;
@@ -4075,7 +4077,7 @@ static boolean P_LoadExtendedSubsectorsAndSegs(UINT8 **data, nodetype_t nodetype
 
 				segs[k - 1 + ((m == 0) ? subsectors[i].numlines : 0)].v2 = segs[k].v1 = &vertexes[vertexnum];
 
-				READUINT32((*data)); // partner, can be ignored by software renderer
+				(void)READUINT32((*data)); // partner, can be ignored by software renderer
 
 				if (nodetype != NT_XGLN)
 				{