diff --git a/src/MAKE/MACHINES/Makefile.beacon b/src/MAKE/MACHINES/Makefile.beacon
index 9c0b609f80..522d7b1859 100644
--- a/src/MAKE/MACHINES/Makefile.beacon
+++ b/src/MAKE/MACHINES/Makefile.beacon
@@ -14,7 +14,7 @@ DEPFLAGS =	-M
 
 LINK =		mpiicpc -openmp
 LINKFLAGS =	-O3 -xAVX
-LIB =           
+LIB =           -ltbbmalloc
 SIZE =		size
 
 ARCHIVE =	ar
diff --git a/src/MAKE/MACHINES/Makefile.stampede b/src/MAKE/MACHINES/Makefile.stampede
index 90211ea01e..69da22c9c9 100644
--- a/src/MAKE/MACHINES/Makefile.stampede
+++ b/src/MAKE/MACHINES/Makefile.stampede
@@ -14,7 +14,7 @@ DEPFLAGS =	-M
 
 LINK =		mpicc -openmp
 LINKFLAGS =	-O3 -xhost
-LIB =           
+LIB =           -ltbbmalloc
 SIZE =		size
 
 ARCHIVE =	ar