diff --git a/includes/api/class-wc-api-products.php b/includes/api/class-wc-api-products.php
index 44e8b20e2fb..d48662c6fa9 100644
--- a/includes/api/class-wc-api-products.php
+++ b/includes/api/class-wc-api-products.php
@@ -1040,6 +1040,8 @@ class WC_API_Products extends WC_API_Resource {
 				'value'   => $args['sku'],
 				'compare' => '='
 			);
+
+			$query_args['post_type'] = array( 'product', 'product_variation' );
 		}
 
 		$query_args = $this->merge_query_args( $query_args, $args );
diff --git a/includes/api/v2/class-wc-api-products.php b/includes/api/v2/class-wc-api-products.php
index d5395d5c57c..41fb1388f86 100644
--- a/includes/api/v2/class-wc-api-products.php
+++ b/includes/api/v2/class-wc-api-products.php
@@ -610,6 +610,8 @@ class WC_API_Products extends WC_API_Resource {
 				'value'   => $args['sku'],
 				'compare' => '='
 			);
+
+			$query_args['post_type'] = array( 'product', 'product_variation' );
 		}
 
 		$query_args = $this->merge_query_args( $query_args, $args );