1 files changed, 3 insertions, 1 deletions
diff --git a/src/Makefile.files b/src/Makefile.files
index 75741e4..e056089 100644
--- a/src/Makefile.files
+++ b/src/Makefile.files
@@ -211,4 +211,6 @@ SRC = analysis/analysis.cpp \
       nodes/expr/ceilmod_expr.h \
       parsers/expr/ceilmod_expr.cpp \
       nodes/expr/roundmod_expr.h \
-      parsers/expr/roundmod_expr.cpp
-\ No newline at end of file
+      parsers/expr/roundmod_expr.cpp \
+      nodes/expr/negate_expr.h \
+      parsers/expr/negate_expr.cpp
+\ No newline at end of file