diff --git a/databases/mysql323-server/Makefile b/databases/mysql323-server/Makefile
index bbd4807d7c90..6435004e769c 100644
--- a/databases/mysql323-server/Makefile
+++ b/databases/mysql323-server/Makefile
@@ -123,6 +123,10 @@ pre-install:
 	@${FALSE}
 .endif
 
+post-patch:
+	@${SED} "s|/etc|${PREFIX}/etc|g" < ${WRKSRC}/mysys/default.c > ${WRKSRC}/mysys/default.c.etcfix
+	@${CP} ${WRKSRC}/mysys/default.c.etcfix ${WRKSRC}/mysys/default.c
+
 post-install:
 .if !defined(PACKAGE_BUILDING)
 .if !defined(SKIP_INSTALL_DB)
diff --git a/databases/mysql40-server/Makefile b/databases/mysql40-server/Makefile
index bbd4807d7c90..6435004e769c 100644
--- a/databases/mysql40-server/Makefile
+++ b/databases/mysql40-server/Makefile
@@ -123,6 +123,10 @@ pre-install:
 	@${FALSE}
 .endif
 
+post-patch:
+	@${SED} "s|/etc|${PREFIX}/etc|g" < ${WRKSRC}/mysys/default.c > ${WRKSRC}/mysys/default.c.etcfix
+	@${CP} ${WRKSRC}/mysys/default.c.etcfix ${WRKSRC}/mysys/default.c
+
 post-install:
 .if !defined(PACKAGE_BUILDING)
 .if !defined(SKIP_INSTALL_DB)
diff --git a/databases/mysql41-server/Makefile b/databases/mysql41-server/Makefile
index bbd4807d7c90..6435004e769c 100644
--- a/databases/mysql41-server/Makefile
+++ b/databases/mysql41-server/Makefile
@@ -123,6 +123,10 @@ pre-install:
 	@${FALSE}
 .endif
 
+post-patch:
+	@${SED} "s|/etc|${PREFIX}/etc|g" < ${WRKSRC}/mysys/default.c > ${WRKSRC}/mysys/default.c.etcfix
+	@${CP} ${WRKSRC}/mysys/default.c.etcfix ${WRKSRC}/mysys/default.c
+
 post-install:
 .if !defined(PACKAGE_BUILDING)
 .if !defined(SKIP_INSTALL_DB)
diff --git a/databases/mysql50-server/Makefile b/databases/mysql50-server/Makefile
index bbd4807d7c90..6435004e769c 100644
--- a/databases/mysql50-server/Makefile
+++ b/databases/mysql50-server/Makefile
@@ -123,6 +123,10 @@ pre-install:
 	@${FALSE}
 .endif
 
+post-patch:
+	@${SED} "s|/etc|${PREFIX}/etc|g" < ${WRKSRC}/mysys/default.c > ${WRKSRC}/mysys/default.c.etcfix
+	@${CP} ${WRKSRC}/mysys/default.c.etcfix ${WRKSRC}/mysys/default.c
+
 post-install:
 .if !defined(PACKAGE_BUILDING)
 .if !defined(SKIP_INSTALL_DB)
diff --git a/databases/mysql51-server/Makefile b/databases/mysql51-server/Makefile
index bbd4807d7c90..6435004e769c 100644
--- a/databases/mysql51-server/Makefile
+++ b/databases/mysql51-server/Makefile
@@ -123,6 +123,10 @@ pre-install:
 	@${FALSE}
 .endif
 
+post-patch:
+	@${SED} "s|/etc|${PREFIX}/etc|g" < ${WRKSRC}/mysys/default.c > ${WRKSRC}/mysys/default.c.etcfix
+	@${CP} ${WRKSRC}/mysys/default.c.etcfix ${WRKSRC}/mysys/default.c
+
 post-install:
 .if !defined(PACKAGE_BUILDING)
 .if !defined(SKIP_INSTALL_DB)
diff --git a/databases/mysql54-server/Makefile b/databases/mysql54-server/Makefile
index bbd4807d7c90..6435004e769c 100644
--- a/databases/mysql54-server/Makefile
+++ b/databases/mysql54-server/Makefile
@@ -123,6 +123,10 @@ pre-install:
 	@${FALSE}
 .endif
 
+post-patch:
+	@${SED} "s|/etc|${PREFIX}/etc|g" < ${WRKSRC}/mysys/default.c > ${WRKSRC}/mysys/default.c.etcfix
+	@${CP} ${WRKSRC}/mysys/default.c.etcfix ${WRKSRC}/mysys/default.c
+
 post-install:
 .if !defined(PACKAGE_BUILDING)
 .if !defined(SKIP_INSTALL_DB)
diff --git a/databases/mysql55-server/Makefile b/databases/mysql55-server/Makefile
index bbd4807d7c90..6435004e769c 100644
--- a/databases/mysql55-server/Makefile
+++ b/databases/mysql55-server/Makefile
@@ -123,6 +123,10 @@ pre-install:
 	@${FALSE}
 .endif
 
+post-patch:
+	@${SED} "s|/etc|${PREFIX}/etc|g" < ${WRKSRC}/mysys/default.c > ${WRKSRC}/mysys/default.c.etcfix
+	@${CP} ${WRKSRC}/mysys/default.c.etcfix ${WRKSRC}/mysys/default.c
+
 post-install:
 .if !defined(PACKAGE_BUILDING)
 .if !defined(SKIP_INSTALL_DB)
diff --git a/databases/mysql60-server/Makefile b/databases/mysql60-server/Makefile
index bbd4807d7c90..6435004e769c 100644
--- a/databases/mysql60-server/Makefile
+++ b/databases/mysql60-server/Makefile
@@ -123,6 +123,10 @@ pre-install:
 	@${FALSE}
 .endif
 
+post-patch:
+	@${SED} "s|/etc|${PREFIX}/etc|g" < ${WRKSRC}/mysys/default.c > ${WRKSRC}/mysys/default.c.etcfix
+	@${CP} ${WRKSRC}/mysys/default.c.etcfix ${WRKSRC}/mysys/default.c
+
 post-install:
 .if !defined(PACKAGE_BUILDING)
 .if !defined(SKIP_INSTALL_DB)
diff --git a/databases/percona55-server/Makefile b/databases/percona55-server/Makefile
index bbd4807d7c90..6435004e769c 100644
--- a/databases/percona55-server/Makefile
+++ b/databases/percona55-server/Makefile
@@ -123,6 +123,10 @@ pre-install:
 	@${FALSE}
 .endif
 
+post-patch:
+	@${SED} "s|/etc|${PREFIX}/etc|g" < ${WRKSRC}/mysys/default.c > ${WRKSRC}/mysys/default.c.etcfix
+	@${CP} ${WRKSRC}/mysys/default.c.etcfix ${WRKSRC}/mysys/default.c
+
 post-install:
 .if !defined(PACKAGE_BUILDING)
 .if !defined(SKIP_INSTALL_DB)