diff --git a/lib/src/doc/check.rs b/lib/src/doc/check.rs
index 5cd96684..16d0b633 100644
--- a/lib/src/doc/check.rs
+++ b/lib/src/doc/check.rs
@@ -15,8 +15,8 @@ impl<'a> Document<'a> {
 	) -> Result<(), Error> {
 		// Check where condition
 		if let Some(cond) = stm.conds() {
-			if cond.expr.compute(ctx, opt, txn, Some(&self.current)).await?.is_truthy() {
 			// Check if the expression is truthy
+			if !cond.expr.compute(ctx, opt, txn, Some(&self.current)).await?.is_truthy() {
 				// Ignore this document
 				return Err(Error::Ignore);
 			}