diff --git a/impure.zsh b/impure.zsh
index 91fdd8d..94764cb 100644
--- a/impure.zsh
+++ b/impure.zsh
@@ -259,14 +259,14 @@ prompt_impure_instant_prompt_cleanup() {
 	(( ${IMPURE_INSTANT_PROMPT_ACTIVE:-0} )) || return 0
 	typeset -g IMPURE_INSTANT_PROMPT_ACTIVE=0
 	if (( ${IMPURE_IP_FD_1:-0} )) && { true >&${IMPURE_IP_FD_1} } 2>/dev/null; then
-		exec 1>&${IMPURE_IP_FD_1} 2>&${IMPURE_IP_FD_2} \
-			{IMPURE_IP_FD_1}>&- {IMPURE_IP_FD_2}>&-
+		exec 0<&${IMPURE_IP_FD_0} 1>&${IMPURE_IP_FD_1} 2>&${IMPURE_IP_FD_2} \
+			{IMPURE_IP_FD_0}>&- {IMPURE_IP_FD_1}>&- {IMPURE_IP_FD_2}>&-
 	fi
 	if [[ -s "${IMPURE_IP_OUTPUT_FILE:-}" ]]; then
 		cat "$IMPURE_IP_OUTPUT_FILE" 2>/dev/null
 	fi
 	rm -f "${IMPURE_IP_OUTPUT_FILE:-}" 2>/dev/null
-	unset IMPURE_IP_FD_1 IMPURE_IP_FD_2 IMPURE_IP_OUTPUT_FILE
+	unset IMPURE_IP_FD_0 IMPURE_IP_FD_1 IMPURE_IP_FD_2 IMPURE_IP_OUTPUT_FILE
 	prompt_impure_reset_prompt
 }
 
diff --git a/instant-prompt.zsh b/instant-prompt.zsh
index a47ca47..38f11a8 100644
--- a/instant-prompt.zsh
+++ b/instant-prompt.zsh
@@ -28,12 +28,14 @@
 	typeset -g IMPURE_INSTANT_PROMPT_ACTIVE=1
 
 	# Redirect stdout/stderr during init to prevent output smearing over the prompt.
+	# Stdin goes to /dev/null so nothing reads from the terminal during init.
 	# Uses sysopen (like p10k) for robust fd management.
 	zmodload zsh/system 2>/dev/null || return
 	typeset -g IMPURE_IP_OUTPUT_FILE="${TMPDIR:-/tmp}/impure-ip-output-$$"
 	{ : > "$IMPURE_IP_OUTPUT_FILE" } 2>/dev/null || return
 	local fd_null
 	sysopen -ru fd_null /dev/null 2>/dev/null || return
-	exec {IMPURE_IP_FD_1}>&1 {IMPURE_IP_FD_2}>&2 0<&$fd_null 1>"$IMPURE_IP_OUTPUT_FILE"
+	exec {IMPURE_IP_FD_0}<&0 {IMPURE_IP_FD_1}>&1 {IMPURE_IP_FD_2}>&2 \
+		0<&$fd_null 1>"$IMPURE_IP_OUTPUT_FILE"
 	exec 2>&1 {fd_null}>&-
 }