diff --git a/src/mame/drivers/cit101.cpp b/src/mame/drivers/cit101.cpp
index b5fdfd19de5..1dd1b0709da 100644
--- a/src/mame/drivers/cit101.cpp
+++ b/src/mame/drivers/cit101.cpp
@@ -137,8 +137,8 @@ void cit101_state::draw_line(uint32_t *pixptr, int minx, int maxx, int line, boo
 	u8 char_data = m_chargen[(m_mainram[rowaddr] << 4) | line];
 	if (last_line && BIT(attr, 0))
 		char_data ^= 0xff;
-	rgb_t on_color = BIT(attr, 1) ? rgb_t::black() : rgb_t::white();
-	rgb_t off_color = BIT(attr, 1) ? rgb_t::white() : rgb_t::black();
+	rgb_t on_color = (BIT(attr, 1) != BIT(scrattr, 0)) ? rgb_t::black() : rgb_t::white();
+	rgb_t off_color = (BIT(attr, 1) != BIT(scrattr, 0)) ? rgb_t::white() : rgb_t::black();
 	if (BIT(attr, 3) && m_blink)
 		on_color = rgb_t(0xc0, 0xc0, 0xc0);
 	bool last_bit = false;
@@ -162,8 +162,8 @@ void cit101_state::draw_line(uint32_t *pixptr, int minx, int maxx, int line, boo
 				char_data = m_chargen[(m_mainram[rowaddr] << 4) | line];
 				if (last_line && BIT(attr, 0))
 					char_data ^= 0xff;
-				on_color = BIT(attr, 1) ? rgb_t::black() : rgb_t::white();
-				off_color = BIT(attr, 1) ? rgb_t::white() : rgb_t::black();
+				on_color = (BIT(attr, 1) != BIT(scrattr, 0)) ? rgb_t::black() : rgb_t::white();
+				off_color = (BIT(attr, 1) != BIT(scrattr, 0)) ? rgb_t::white() : rgb_t::black();
 				if (BIT(attr, 3) && m_blink)
 					on_color = rgb_t(0xc0, 0xc0, 0xc0);
 				last_bit = false;