diff --git a/m4/lc_cpucores.m4 b/m4/lc_cpucores.m4
index 5e4e02d7..2fae953a 100644
--- a/m4/lc_cpucores.m4
+++ b/m4/lc_cpucores.m4
@@ -26,7 +26,7 @@ main(void)
 	return 0;
 }
 ]])], [
-	AC_DEFINE([HAVE_NCPU_SYSCONF], [1],
+	AC_DEFINE([HAVE_CPUCORES_SYSCONF], [1],
 		[Define to 1 if the number of available CPU cores can be
 		detected with sysconf(_SC_NPROCESSORS_ONLN).])
 	AC_MSG_RESULT([sysconf])
@@ -47,7 +47,7 @@ main(void)
 	return 0;
 }
 ]])], [
-	AC_DEFINE([HAVE_NCPU_SYSCTL], [1],
+	AC_DEFINE([HAVE_CPUCORES_SYSCTL], [1],
 		[Define to 1 if the number of available CPU cores can be
 		detected with sysctl().])
 	AC_MSG_RESULT([sysctl])
diff --git a/src/common/cpucores.h b/src/common/cpucores.h
index 7e1a1438..1066a8e9 100644
--- a/src/common/cpucores.h
+++ b/src/common/cpucores.h
@@ -14,10 +14,10 @@
 #ifndef CPUCORES_H
 #define CPUCORES_H
 
-#if defined(HAVE_NCPU_SYSCONF)
+#if defined(HAVE_CPUCORES_SYSCONF)
 #	include <unistd.h>
 
-#elif defined(HAVE_NCPU_SYSCTL)
+#elif defined(HAVE_CPUCORES_SYSCTL)
 #	ifdef HAVE_SYS_PARAM_H
 #		include <sys/param.h>
 #	endif