diff --git a/src/scripting/backend/codegen.cpp b/src/scripting/backend/codegen.cpp
index 273d4e4987..256af647a5 100644
--- a/src/scripting/backend/codegen.cpp
+++ b/src/scripting/backend/codegen.cpp
@@ -924,11 +924,11 @@ void FxBoolCast::EmitCompare(VMFunctionBuilder *build, bool invert, TArray<size_
 //
 //==========================================================================
 
-FxIntCast::FxIntCast(FxExpression *x, bool nowarn, bool explicitly)
+FxIntCast::FxIntCast(FxExpression *x, bool nowarn, bool explicitly, bool isunsigned)
 : FxExpression(EFX_IntCast, x->ScriptPosition)
 {
 	basex=x;
-	ValueType = TypeSInt32;
+	ValueType = isunsigned ? TypeUInt32 : TypeSInt32;
 	NoWarn = nowarn;
 	Explicit = explicitly;
 }
@@ -1632,7 +1632,7 @@ FxExpression *FxTypeCast::Resolve(FCompileContext &ctx)
 	else if (ValueType->isInt())
 	{
 		// This is only for casting to actual ints. Subtypes representing an int will be handled elsewhere.
-		FxExpression *x = new FxIntCast(basex, NoWarn, Explicit);
+		FxExpression *x = new FxIntCast(basex, NoWarn, Explicit, static_cast<PInt*>(ValueType)->Unsigned);
 		x = x->Resolve(ctx);
 		basex = nullptr;
 		delete this;
diff --git a/src/scripting/backend/codegen.h b/src/scripting/backend/codegen.h
index 8ee32423fa..88ea7bcdd7 100644
--- a/src/scripting/backend/codegen.h
+++ b/src/scripting/backend/codegen.h
@@ -604,7 +604,7 @@ class FxIntCast : public FxExpression
 
 public:
 
-	FxIntCast(FxExpression *x, bool nowarn, bool explicitly = false);
+	FxIntCast(FxExpression *x, bool nowarn, bool explicitly = false, bool isunsigned = false);
 	~FxIntCast();
 	FxExpression *Resolve(FCompileContext&);
 
diff --git a/src/scripting/vm/vm.h b/src/scripting/vm/vm.h
index e5f7d1357e..342b44d78b 100644
--- a/src/scripting/vm/vm.h
+++ b/src/scripting/vm/vm.h
@@ -411,6 +411,7 @@ bool AssertObject(void * ob);
 #define PARAM_EXISTS(p)					((p) < numparam)
 
 #define PARAM_INT_DEF_AT(p,x)			int x; if (PARAM_EXISTS(p)) { ASSERTINT(param[p]); x = param[p].i; } else { ASSERTINT(defaultparam[p]); x = defaultparam[p].i; }
+#define PARAM_UINT_DEF_AT(p,x)			unsigned x; if (PARAM_EXISTS(p)) { ASSERTINT(param[p]); x = param[p].i; } else { ASSERTINT(defaultparam[p]); x = defaultparam[p].i; }
 #define PARAM_BOOL_DEF_AT(p,x)			bool x; if (PARAM_EXISTS(p)) { ASSERTINT(param[p]); x = !!param[p].i; } else { ASSERTINT(defaultparam[p]); x = !!defaultparam[p].i; }
 #define PARAM_NAME_DEF_AT(p,x)			FName x; if (PARAM_EXISTS(p)) { ASSERTINT(param[p]); x = ENamedName(param[p].i); } else { ASSERTINT(defaultparam[p]); x = ENamedName(defaultparam[p].i); }
 #define PARAM_SOUND_DEF_AT(p,x)			FSoundID x; if (PARAM_EXISTS(p)) { ASSERTINT(param[p]); x = FSoundID(param[p].i); } else { ASSERTINT(defaultparam[p]); x = FSoundID(defaultparam[p].i); }
@@ -449,6 +450,7 @@ bool AssertObject(void * ob);
 #define PARAM_CLASS_NOT_NULL(x,base)		++paramnum; PARAM_CLASS_NOT_NULL_AT(paramnum,x,base)
 
 #define PARAM_INT_DEF(x)			++paramnum; PARAM_INT_DEF_AT(paramnum,x)
+#define PARAM_UINT_DEF(x)			++paramnum; PARAM_UINT_DEF_AT(paramnum,x)
 #define PARAM_BOOL_DEF(x)			++paramnum; PARAM_BOOL_DEF_AT(paramnum,x)
 #define PARAM_NAME_DEF(x)			++paramnum; PARAM_NAME_DEF_AT(paramnum,x)
 #define PARAM_SOUND_DEF(x)			++paramnum; PARAM_SOUND_DEF_AT(paramnum,x)