diff --git a/make.inc.macosx_clang_matlab b/make.inc.macosx_clang_matlab
index c856d537b..739215476 100644
--- a/make.inc.macosx_clang_matlab
+++ b/make.inc.macosx_clang_matlab
@@ -21,7 +21,7 @@ CXX=clang++
 CC=clang
 
 # taken from makefile...
-CFLAGS   += -I include -I/usr/local/include -I/opt/homebrew/include
+CFLAGS   += -I include -I/usr/local/include -I/usr/local/opt/libomp/include -I/opt/homebrew/include
 FFLAGS   = $(CFLAGS)
 CXXFLAGS = $(CFLAGS)
 LIBS += -L/usr/local/lib -L/opt/homebrew/lib