diff --git a/x11/kactivitymanagerd/Makefile b/x11/kactivitymanagerd/Makefile
index d720c34b8390..31514f89d229 100644
--- a/x11/kactivitymanagerd/Makefile
+++ b/x11/kactivitymanagerd/Makefile
@@ -2,6 +2,7 @@
 
 PORTNAME=	kactivitymanagerd
 PORTVERSION=	${KDE4_VERSION}
+PORTREVISION=	1
 CATEGORIES=	x11 kde
 MASTER_SITES=	${MASTER_SITE_KDE}
 MASTER_SITE_SUBDIR=	${KDE4_BRANCH}/${PORTVERSION}/src
@@ -23,6 +24,9 @@ USE_LDCONFIG=	yes
 MAKE_JOBS_SAFE=	yes
 DISTINFO_FILE=	${.CURDIR}/../kactivities/distinfo
 
+# https://bugs.kde.org/show_bug.cgi?id=305529#c10
+CMAKE_ARGS+=    -DCMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS=-rdynamic
+
 # 'USES= moderncompiler' would help, for now force dependence on gcc
 USE_GCC=	4.6+