diff --git a/share/mk/bsd.prog.mk b/share/mk/bsd.prog.mk
index 715d16fba..a1b30e1b7 100644
--- a/share/mk/bsd.prog.mk
+++ b/share/mk/bsd.prog.mk
@@ -381,7 +381,7 @@ cleanextra: .PHONY
 ${TARGETS}:	# ensure existence
 
 ###### Minix rule to set up mem allocations for boot image services
-.if defined(INSTALLFLAGS)
+.if defined(INSTALLFLAGS) && ${COMPILER_TYPE} == "ack"
 all: .PHONY memalloc
 
 memalloc: realall