diff --git a/trick_sims/makefile b/trick_sims/makefile
index 8e1f8bc7..881f9efb 100644
--- a/trick_sims/makefile
+++ b/trick_sims/makefile
@@ -11,7 +11,7 @@ COMPILE_DIRS = \
     Cannon/SIM_cannon_aero \
     Cannon/SIM_cannon_analytic \
     Cannon/SIM_cannon_eulercromer \
-    Cannon/SIM_cannon_integ \
+    Cannon/SIM_cannon_numeric \
     Cannon/SIM_cannon_jet \
     SIM_Ball++_L1 \
     SIM_satellite \
@@ -29,7 +29,7 @@ TEST_DIRS = \
     Cannon/SIM_cannon_aero \
     Cannon/SIM_cannon_analytic \
     Cannon/SIM_cannon_eulercromer \
-    Cannon/SIM_cannon_integ \
+    Cannon/SIM_cannon_numeric \
     Cannon/SIM_cannon_jet \
     SIM_Ball++_L1 \
     SIM_sun