diff --git a/src/query/plan/preprocess.cpp b/src/query/plan/preprocess.cpp
index 1554ce8ce..ca605a46a 100644
--- a/src/query/plan/preprocess.cpp
+++ b/src/query/plan/preprocess.cpp
@@ -660,6 +660,10 @@ void PatternVisitor::Visit(Exists &op) {
 
 std::vector<FilterMatching> PatternVisitor::getFilterMatchings() { return filter_matchings_; }
 
+std::vector<PatternComprehensionMatching> PatternVisitor::getPatternComprehensionMatchings() {
+  return pattern_comprehension_matchings_;
+}
+
 static void ParseForeach(query::Foreach &foreach, SingleQueryPart &query_part, AstStorage &storage,
                          SymbolTable &symbol_table) {
   for (auto *clause : foreach.clauses_) {
diff --git a/src/query/plan/preprocess.hpp b/src/query/plan/preprocess.hpp
index b1ad253c4..5d4e2e8d2 100644
--- a/src/query/plan/preprocess.hpp
+++ b/src/query/plan/preprocess.hpp
@@ -239,9 +239,7 @@ class PatternVisitor : public ExpressionVisitor<void> {
   void Visit(PatternComprehension &op) override;
 
   std::vector<FilterMatching> getFilterMatchings();
-  std::vector<PatternComprehensionMatching> getPatternComprehensionMatchings() {
-    return pattern_comprehension_matchings_;
-  }
+  std::vector<PatternComprehensionMatching> getPatternComprehensionMatchings();
 
   SymbolTable &symbol_table_;
   AstStorage &storage_;