diff --git a/abuild.in b/abuild.in
index 814f88f..e4e5091 100644
--- a/abuild.in
+++ b/abuild.in
@@ -1558,15 +1558,15 @@ builddeps() {
 
 	# find which deps are missing
 	for i in $builddeps; do
-		if [ "${i#\!}" != "$i" ]; then
-			$APK info --quiet --installed "${i#\!}"
+		if [ "${i#\!}" != "$i" ] && $APK info --quiet --installed "${i#\!}"; then
+			error "Conflicting package installed: ${i#\!}"
 		elif ! deplist_has $i $installed_builddeps || [ -n "$upgrade" ]; then
 			missing="$missing $i"
 		fi
 	done
 	for i in $hostdeps; do
-		if [ "${i#\!}" != "$i" ]; then
-			$APK info --quiet --installed --root "$CBUILDROOT" "${i#\!}"
+		if [ "${i#\!}" != "$i" ] && $APK info --quiet --installed --root "$CBUILDROOT" "${i#\!}"; then
+			error "Conflicting package installed: ${i#\!}"
 		elif ! deplist_has $i $installed_hostdeps || [ -n "$upgrade" ]; then
 			missing="$missing $i"
 		fi