1 files changed, 1 insertions, 0 deletions
diff --git a/src/exact_value.cpp b/src/exact_value.cpp
index 62ab326ea..b3d4e9f4f 100644
--- a/src/exact_value.cpp
+++ b/src/exact_value.cpp
@@ -4,6 +4,7 @@
 // IMPORTANT TODO(bill): This needs to be completely fixed!!!!!!!!
 
 struct AstNode;
+struct HashKey;
 
 struct Complex128 {
 	f64 real, imag;