diff --git a/Core/NES/Mappers/Nintendo/UnRom_180.h b/Core/NES/Mappers/Nintendo/UnRom_180.h
index 19a55c50f..708739f44 100644
--- a/Core/NES/Mappers/Nintendo/UnRom_180.h
+++ b/Core/NES/Mappers/Nintendo/UnRom_180.h
@@ -17,6 +17,6 @@ class UnRom_180 : public BaseMapper
 
 	void WriteRegister(uint16_t addr, uint8_t value) override
 	{
-		SelectPrgPage(1, value & 0x07);
+		SelectPrgPage(1, value);
 	}
 };
\ No newline at end of file
diff --git a/Core/NES/Mappers/Unlicensed/Nina01.h b/Core/NES/Mappers/Unlicensed/Nina01.h
index 838f2f239..ef3c28af4 100644
--- a/Core/NES/Mappers/Unlicensed/Nina01.h
+++ b/Core/NES/Mappers/Unlicensed/Nina01.h
@@ -18,9 +18,9 @@ class Nina01 : public BaseMapper
 	void WriteRegister(uint16_t addr, uint8_t value) override
 	{
 		switch(addr) {
-			case 0x7FFD: SelectPrgPage(0, value & 0x01); break;
-			case 0x7FFE: SelectChrPage(0, value & 0x0F); break;
-			case 0x7FFF: SelectChrPage(1, value & 0x0F); break;
+			case 0x7FFD: SelectPrgPage(0, value); break;
+			case 0x7FFE: SelectChrPage(0, value); break;
+			case 0x7FFF: SelectChrPage(1, value); break;
 		}
 
 		WritePrgRam(addr, value);