diff --git a/Mk/Uses/compiler.mk b/Mk/Uses/compiler.mk
index d8a2c97d8a6e..154f00e1001b 100644
--- a/Mk/Uses/compiler.mk
+++ b/Mk/Uses/compiler.mk
@@ -148,7 +148,7 @@ _LANG=c++
 .if defined(CC_OUTPUT_${_CC_hash}_${std:hash})
 OUTPUT_${std}=	${CC_OUTPUT_${_CC_hash}_${std:hash}}
 .else
-OUTPUT_${std}!=	${CC} -std=${std} -c -x ${_LANG} /dev/null -o /dev/null 2>&1; echo yes
+OUTPUT_${std}!=	if ${CC} -std=${std} -c -x ${_LANG} /dev/null -o /dev/null 2>&1; then echo yes; fi; echo
 CC_OUTPUT_${_CC_hash}_${std:hash}=	${OUTPUT_${std}}
 PORTS_ENV_VARS+=			CC_OUTPUT_${_CC_hash}_${std:hash}
 .endif