diff --git a/usr/tests/Makefile b/usr/tests/Makefile
index 0c2d417eb..4a0ac8c31 100644
--- a/usr/tests/Makefile
+++ b/usr/tests/Makefile
@@ -9,6 +9,7 @@ CROSSCOMPREFIX = x86_64-hermit-
 
 CC_FOR_TARGET = $(CROSSCOMPREFIX)gcc
 GO_FOR_TARGET = $(CROSSCOMPREFIX)gccgo
+FC_FOR_TARGET = $(CROSSCOMPREFIX)gfortran
 CXX_FOR_TARGET = $(CROSSCOMPREFIX)g++
 GCC_FOR_TARGET = $(CROSSCOMPREFIX)gcc
 CPP_FOR_TARGET = $(CROSSCOMPREFIX)cpp