diff --git a/src/g_newdm.c b/src/g_newdm.c
index 8afb900..92fc7a8 100644
--- a/src/g_newdm.c
+++ b/src/g_newdm.c
@@ -359,7 +359,7 @@ body_think(edict_t *self)
 {
 	float r;
 
-	if (abs(self->ideal_yaw - anglemod(self->s.angles[YAW])) < 2)
+	if (fabsf(self->ideal_yaw - anglemod(self->s.angles[YAW])) < 2)
 	{
 		if (self->timestamp < level.time)
 		{
diff --git a/src/monster/misc/move.c b/src/monster/misc/move.c
index 7f3fdc6..78041f8 100644
--- a/src/monster/misc/move.c
+++ b/src/monster/misc/move.c
@@ -714,7 +714,7 @@ SV_NewChaseDir(edict_t *actor, edict_t *enemy, float dist)
 	}
 
 	/* try other directions */
-	if (((rand() & 3) & 1) || (abs(deltay) > abs(deltax)))
+	if (((rand() & 3) & 1) || (fabsf(deltay) > fabsf(deltax)))
 	{
 		tdir = d[1];
 		d[1] = d[2];
diff --git a/src/monster/stalker/stalker.c b/src/monster/stalker/stalker.c
index 65c370a..a53e919 100644
--- a/src/monster/stalker/stalker.c
+++ b/src/monster/stalker/stalker.c
@@ -117,7 +117,7 @@ stalker_ok_to_transition(edict_t *self)
 		return false;
 	}
 
-	if (abs(end_height + margin - trace.endpos[2]) > 8)
+	if (fabsf(end_height + margin - trace.endpos[2]) > 8)
 	{
 		return false;
 	}
@@ -134,7 +134,7 @@ stalker_ok_to_transition(edict_t *self)
 		return false;
 	}
 
-	if (abs(end_height + margin - trace.endpos[2]) > 8)
+	if (fabsf(end_height + margin - trace.endpos[2]) > 8)
 	{
 		return false;
 	}
@@ -150,7 +150,7 @@ stalker_ok_to_transition(edict_t *self)
 		return false;
 	}
 
-	if (abs(end_height + margin - trace.endpos[2]) > 8)
+	if (fabsf(end_height + margin - trace.endpos[2]) > 8)
 	{
 		return false;
 	}
@@ -166,7 +166,7 @@ stalker_ok_to_transition(edict_t *self)
 		return false;
 	}
 
-	if (abs(end_height + margin - trace.endpos[2]) > 8)
+	if (fabsf(end_height + margin - trace.endpos[2]) > 8)
 	{
 		return false;
 	}
@@ -972,7 +972,7 @@ stalker_do_pounce(edict_t *self, vec3_t dest)
 	/* make sure we're pointing in that direction 15deg margin of error. */
 	vectoangles2(dist, jumpAngles);
 
-	if (abs(jumpAngles[YAW] - self->s.angles[YAW]) > 45)
+	if (fabsf(jumpAngles[YAW] - self->s.angles[YAW]) > 45)
 	{
 		return false; /* not facing the player... */
 	}