diff --git a/src/info.cpp b/src/info.cpp
index c15bf0a94..a1dd4723e 100644
--- a/src/info.cpp
+++ b/src/info.cpp
@@ -562,7 +562,6 @@ DamageTypeDefinition *DamageTypeDefinition::Get(FName const type)
 
 bool DamageTypeDefinition::IgnoreArmor(FName const type)
 { 
-	if (type == NAME_Drowning) return true; 
 	DamageTypeDefinition *dtd = Get(type);
 	if (dtd) return dtd->NoArmor;
 	return false;
@@ -609,12 +608,11 @@ int DamageTypeDefinition::ApplyMobjDamageFactor(int damage, FName const type, Dm
 	
 	{
 		fixed_t const *pdf  = factors->CheckKey(NAME_None);
+		DamageTypeDefinition *dtd = Get(type);
 		// Here we are looking for modifications to untyped damage
 		// If the calling actor defines untyped damage factor, that is contained in "pdf".
 		if (pdf) // normal damage available
 		{
-			DamageTypeDefinition *dtd = Get(type);
-
 			if (dtd)
 			{
 				if (dtd->ReplaceFactor) return FixedMul(damage, dtd->DefaultFactor); // use default instead of untyped factor
@@ -622,6 +620,10 @@ int DamageTypeDefinition::ApplyMobjDamageFactor(int damage, FName const type, Dm
 			}
 			return FixedMul(damage, *pdf); // there was no default, so actor default is used
 		}
+		else if (dtd)
+		{
+			return FixedMul(damage, dtd->DefaultFactor); // implicit untyped factor 1.0 does not need to be applied/replaced explicitly
+		}
 	}
 	return damage;
 }
diff --git a/src/info.h b/src/info.h
index 7fcdeca9b..ff59a4656 100644
--- a/src/info.h
+++ b/src/info.h
@@ -201,7 +201,7 @@ public:
 	void Apply(FName const type);
 	void Clear()
 	{
-		DefaultFactor = (fixed_t)1;
+		DefaultFactor = FRACUNIT;
 		ReplaceFactor = false;
 		NoArmor = false;
 	}
diff --git a/src/thingdef/thingdef_parse.cpp b/src/thingdef/thingdef_parse.cpp
index 1b820f9bb..a15c18e16 100644
--- a/src/thingdef/thingdef_parse.cpp
+++ b/src/thingdef/thingdef_parse.cpp
@@ -1202,7 +1202,7 @@ static void ParseDamageDefinition(FScanner &sc)
 		if (sc.Compare("FACTOR"))
 		{
 			sc.MustGetFloat();
-			dtd.DefaultFactor = (fixed_t)sc.Float;
+			dtd.DefaultFactor = FLOAT2FIXED(sc.Float);
 			if (!dtd.DefaultFactor) dtd.ReplaceFactor = true; // Multiply by 0 yields 0: FixedMul(damage, FixedMul(factor, 0)) is more wasteful than FixedMul(factor, 0)
 		}
 		else if (sc.Compare("REPLACEFACTOR"))
diff --git a/wadsrc/static/actors/shared/damagetypes.txt b/wadsrc/static/actors/shared/damagetypes.txt
new file mode 100644
index 000000000..7ba83564d
--- /dev/null
+++ b/wadsrc/static/actors/shared/damagetypes.txt
@@ -0,0 +1,4 @@
+damagetype Drowning
+{
+	NoArmor
+}
diff --git a/wadsrc/static/decorate.txt b/wadsrc/static/decorate.txt
index 465ce3287..ae4b6f851 100644
--- a/wadsrc/static/decorate.txt
+++ b/wadsrc/static/decorate.txt
@@ -29,6 +29,7 @@
 #include "actors/shared/sectoraction.txt"
 #include "actors/shared/action.txt"
 #include "actors/shared/dog.txt"
+#include "actors/shared/damagetypes.txt"
 
 #include "actors/doom/doomplayer.txt"
 #include "actors/doom/possessed.txt"