diff --git a/main.c b/main.c
index ee17c15..83187e7 100644
--- a/main.c
+++ b/main.c
@@ -33,9 +33,6 @@
 # include "bsdstubs.h"
 #endif
 
-/* we are compatible with 0.26 of pkg-config */
-#define PKGCONFIG_VERSION_EQUIV		"0.26"
-
 #define WANT_CFLAGS_ONLY_I		(19)
 #define WANT_CFLAGS_ONLY_OTHER		(20)
 
@@ -501,7 +498,7 @@ main(int argc, char *argv[])
 
 	if (required_pkgconfig_version != NULL)
 	{
-		if (pkg_compare_version(PKGCONFIG_VERSION_EQUIV, required_pkgconfig_version) >= 0)
+		if (pkg_compare_version(PKG_PKGCONFIG_VERSION_EQUIV, required_pkgconfig_version) >= 0)
 			return EXIT_SUCCESS;
 
 		return EXIT_FAILURE;
diff --git a/pkg.h b/pkg.h
index 138233a..a517601 100644
--- a/pkg.h
+++ b/pkg.h
@@ -37,6 +37,9 @@
 #define BUFSIZ	65535
 #endif
 
+/* we are compatible with 0.26 of pkg-config */
+#define PKG_PKGCONFIG_VERSION_EQUIV	"0.26"
+
 typedef enum {
 	PKG_ANY = 0,
 	PKG_LESS_THAN,