diff --git a/sys/conf/kern.pre.mk b/sys/conf/kern.pre.mk
index ee72dbe0ebe1..2afc70808813 100644
--- a/sys/conf/kern.pre.mk
+++ b/sys/conf/kern.pre.mk
@@ -192,7 +192,7 @@ SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
 SYSTEM_DEP+= ${LDSCRIPT}
 
 # Calculate path for .m files early, if needed.
-.if !defined(NO_MODULES) && !defined(__MPATH)
+.if !defined(NO_MODULES) && !defined(__MPATH) && !make(install)
 __MPATH!=find ${S:tA}/ -name \*_if.m
 .endif