diff --git a/src/playsim/p_maputl.cpp b/src/playsim/p_maputl.cpp
index 9c5bd14b1..16c7d183c 100644
--- a/src/playsim/p_maputl.cpp
+++ b/src/playsim/p_maputl.cpp
@@ -889,7 +889,7 @@ void FMultiBlockLinesIterator::Reset()
 //===========================================================================
 
 FBlockThingsIterator::FBlockThingsIterator(FLevelLocals *l)
-: DynHash(0)
+: DynHash()
 {
 	Level = l;
 	minx = maxx = 0;
@@ -899,7 +899,7 @@ FBlockThingsIterator::FBlockThingsIterator(FLevelLocals *l)
 }
 
 FBlockThingsIterator::FBlockThingsIterator(FLevelLocals *l, int _minx, int _miny, int _maxx, int _maxy)
-: DynHash(0)
+: DynHash()
 {
 	Level = l;
 	minx = _minx;