diff -r 9330b93d9946 -r 53f9c7b2c068 sources/interface.cpp
--- a/sources/interface.cpp	Wed Jan 27 18:55:03 2021 +0200
+++ b/sources/interface.cpp	Wed Jan 27 18:55:14 2021 +0200
@@ -740,7 +740,7 @@
 		if (m_cursorPosition > 0)
 		{
 			std::string& input = getEditableInput();
-			input.erase(input.begin() + m_cursorPosition);
+			input.erase(input.begin() + m_cursorPosition - 1);
 			m_cursorPosition -= 1;
 			m_needInputRender = true;
 		}