diff --git a/src/peakdetector/peakdetector.pro b/src/peakdetector/peakdetector.pro
index cff6ab9f..0a314cc5 100644
--- a/src/peakdetector/peakdetector.pro
+++ b/src/peakdetector/peakdetector.pro
@@ -35,6 +35,11 @@ mac {
             QMAKE_LINK=/usr/local/opt/llvm/bin/clang++
             LIBS += -L/usr/local/opt/llvm/lib/
 
+            INCLUDEPATH += /usr/local/opt/llvm/lib/include/
+
+            # Change this as needed for version of llvm
+            INCLUDEPATH += /usr/local/opt/llvm/lib/clang/13.0.1/include/
+
             CONFIG += parallel
         }
 }