diff --git a/src/condition.c b/src/condition.c
index 160666e..1981e1e 100644
--- a/src/condition.c
+++ b/src/condition.c
@@ -180,9 +180,9 @@ static void condition_free(condition *c) {
 		g_string_free(c->rvalue.string, TRUE);
 		break;
 #ifdef HAVE_PCRE_H
-	case COND_VALUE_REGEXP
-		if (c->rvalue.regex) pcre_free(c->rvalue.regex);
-		if (c->rvalue.regex_study) pcre_free(c->rvalue.regex_study);
+	case COND_VALUE_REGEXP:
+		if (c->rvalue.pcre.regex) pcre_free(c->rvalue.pcre.regex);
+		if (c->rvalue.pcre.regex_study) pcre_free(c->rvalue.pcre.regex_study);
 #endif
 		break;
 	case COND_VALUE_SOCKET_IPV4:
diff --git a/src/condition.h b/src/condition.h
index aca3901..b7d9821 100644
--- a/src/condition.h
+++ b/src/condition.h
@@ -88,7 +88,7 @@ struct condition_rvalue {
 	struct {
 		pcre   *regex;
 		pcre_extra *regex_study;
-	};
+	} pcre;
 #endif
 	gint64 i;
 	struct {
diff --git a/src/settings.h b/src/settings.h
index 518df33..aaebd18 100644
--- a/src/settings.h
+++ b/src/settings.h
@@ -40,6 +40,10 @@
 # include <unistd.h>
 #endif
 
+#ifdef HAVE_PCRE_H
+#include <pcre.h>
+#endif
+
 #include <errno.h>
 #include <string.h>