diff --git a/src/defaults.c b/src/defaults.c
index a4f6bd69..e1c1a0fa 100644
--- a/src/defaults.c
+++ b/src/defaults.c
@@ -801,7 +801,7 @@ static void initDefaults(void)
 	}
 }
 
-static WMPropList *readGlobalDomain(char *domainName, Bool requireDictionary)
+static WMPropList *readGlobalDomain(const char *domainName, Bool requireDictionary)
 {
 	WMPropList *globalDict = NULL;
 	char path[PATH_MAX];
@@ -887,12 +887,12 @@ void wDefaultsMergeGlobalMenus(WDDomain * menuDomain)
 	menuDomain->dictionary = menu;
 }
 
-WDDomain *wDefaultsInitDomain(char *domain, Bool requireDictionary)
+WDDomain *wDefaultsInitDomain(const char *domain, Bool requireDictionary)
 {
 	WDDomain *db;
 	struct stat stbuf;
 	static int inited = 0;
-	char *the_path;
+	const char *the_path;
 	WMPropList *shared_dict = NULL;
 
 	if (!inited) {
diff --git a/src/defaults.h b/src/defaults.h
index 2f82fd6c..dbba9c9a 100644
--- a/src/defaults.h
+++ b/src/defaults.h
@@ -22,13 +22,13 @@
 #define WMDEFAULTS_H_
 
 typedef struct WDDomain {
-	char *domain_name;
+	const char *domain_name;
 	WMPropList *dictionary;
-	char *path;
+	const char *path;
 	time_t timestamp;
 } WDDomain;
 
-WDDomain * wDefaultsInitDomain(char *domain, Bool requireDictionary);
+WDDomain * wDefaultsInitDomain(const char *domain, Bool requireDictionary);
 
 void wDefaultsMergeGlobalMenus(WDDomain *menuDomain);