diff --git a/cmake/Requirements.cmake b/cmake/Requirements.cmake
index e0cf7a7..4941d52 100644
--- a/cmake/Requirements.cmake
+++ b/cmake/Requirements.cmake
@@ -72,7 +72,20 @@ pkg_check_modules (SQLITE REQUIRED sqlite3)
 pkg_check_modules (CURL REQUIRED libcurl)
 
 # check for libical
-pkg_check_modules (LIBICAL REQUIRED libical)
+check_include_file(libical/ical.h HAVE_ICAL_H)
+if (NOT HAVE_ICAL_H)
+	check_include_file(ical.h HAVE_OLD_ICAL_H)
+	if (NOT HAVE_OLD_ICAL_H)
+		message(FATAL_ERROR "Bongo needs libical in order to compile")
+	endif (NOT HAVE_OLD_ICAL_H)
+endif (NOT HAVE_ICAL_H)
+
+check_library_exists(ical icaltime_compare "" HAVE_ICAL)
+if (HAVE_ICAL)
+	set(LIBICAL_LIBRARIES "ical")
+else (HAVE_ICAL)
+	message(FATAL_ERROR "Bongo couldn't find the libical runtime library")
+endif (HAVE_ICAL)
 
 # check for Python
 include(FindPythonLibs)
diff --git a/config.h.cmake b/config.h.cmake
index e6a3263..fd07747 100644
--- a/config.h.cmake
+++ b/config.h.cmake
@@ -31,6 +31,9 @@
     #cmakedefine HAVE_SEMAPHORE_H
 #endif// Directories.txt
 
+#cmakedefine HAVE_ICAL_H	1
+#cmakedefine HAVE_OLD_ICAL_H	1
+
 #cmakedefine BINDIR		"@BINDIR@"
 #cmakedefine SBINDIR		"@SBINDIR@"
 #cmakedefine LIBDIR		"@LIBDIR@"
diff --git a/include/bongocal-raw.h b/include/bongocal-raw.h
index 2ba3c96..4ddc671 100644
--- a/include/bongocal-raw.h
+++ b/include/bongocal-raw.h
@@ -23,7 +23,7 @@
 #define BONGOCAL_RAW_H
 
 #include <xpl.h>
-#include <libical/ical.h>
+#include <ical-wrapper.h>
 #include <bongojson.h>
 
 XPL_BEGIN_C_LINKAGE
diff --git a/include/ical-wrapper.h b/include/ical-wrapper.h
new file mode 100644
index 0000000..0a27c17
--- /dev/null
+++ b/include/ical-wrapper.h
@@ -0,0 +1,11 @@
+// This is simply a wrapper for ical
+// Sadly, some installations use /usr/include/ical.h instead of the
+// "correct" /usr/include/libical/ical.h
+
+#ifdef HAVE_ICAL_H
+#include <libical/ical.h>
+#endif
+
+#ifdef HAVE_OLD_ICAL_H
+#include <ical.h>
+#endif
diff --git a/src/agents/alarm/alarm.h b/src/agents/alarm/alarm.h
index b4bd999..012847a 100644
--- a/src/agents/alarm/alarm.h
+++ b/src/agents/alarm/alarm.h
@@ -28,7 +28,7 @@
 #include <nmlib.h>
 #include <bongoagent.h>
 
-#include <libical/ical.h>
+#include <ical-wrapper.h>
 
 #define AGENT_NAME "bongoalarm"
 #define AGENT_DN "Alarm Agent"
diff --git a/src/agents/collector/collector.h b/src/agents/collector/collector.h
index e3e0615..5117023 100644
--- a/src/agents/collector/collector.h
+++ b/src/agents/collector/collector.h
@@ -28,7 +28,7 @@
 #include <nmlib.h>
 #include <bongoagent.h>
 
-#include <libical/ical.h>
+#include <ical-wrapper.h>
 
 #define AGENT_NAME "bongocollector"
 #define AGENT_DN "Collector Agent"
diff --git a/src/libs/cal/bongo-cal-instance.c b/src/libs/cal/bongo-cal-instance.c
index d107f62..ff82208 100644
--- a/src/libs/cal/bongo-cal-instance.c
+++ b/src/libs/cal/bongo-cal-instance.c
@@ -22,7 +22,7 @@
 #include <config.h>
 #include "bongo-cal-private.h"
 #include <bongocal.h>
-#include <libical/ical.h>
+#include <ical-wrapper.h>
 
 typedef struct {
     BongoCalRecurFrequency freq;
diff --git a/src/libs/cal/bongo-cal-object.c b/src/libs/cal/bongo-cal-object.c
index 166e3ca..bf72a5e 100644
--- a/src/libs/cal/bongo-cal-object.c
+++ b/src/libs/cal/bongo-cal-object.c
@@ -22,7 +22,7 @@
 #include <config.h>
 #include <bongoutil.h>
 #include <bongocal.h>
-#include <libical/ical.h>
+#include <ical-wrapper.h>
 #include <bongocal-raw.h>
 #include "bongo-cal-private.h"
 
diff --git a/src/libs/cal/bongo-cal-time.c b/src/libs/cal/bongo-cal-time.c
index 9cab7aa..e6f0b03 100644
--- a/src/libs/cal/bongo-cal-time.c
+++ b/src/libs/cal/bongo-cal-time.c
@@ -41,7 +41,7 @@
 #include <config.h>
 #include "bongo-cal-private.h"
 #include <bongocal.h>
-#include <libical/ical.h>
+#include <ical-wrapper.h>
 
 #define ASSERTTZ(t) {assert(!t.isUtc || (t.isUtc && t.tz == NULL) || (t.isUtc && t.tz == BongoCalTimezoneGetUtc())); assert(!t.tz || !t.tzid  || (!strcmp(t.tzid,  BongoCalTimezoneGetTzid(t.tz)))); }
 
diff --git a/src/libs/cal/bongo-cal-timezone.c b/src/libs/cal/bongo-cal-timezone.c
index d4fd647..05dea86 100644
--- a/src/libs/cal/bongo-cal-timezone.c
+++ b/src/libs/cal/bongo-cal-timezone.c
@@ -48,7 +48,7 @@
 #include <config.h>
 #include "bongo-cal-private.h"
 #include <bongocal.h>
-#include <libical/ical.h>
+#include <ical-wrapper.h>
 
 typedef struct {
     int utcOffset;
diff --git a/src/libs/cal/cal-convert.c b/src/libs/cal/cal-convert.c
index e6b584d..75b9ab6 100644
--- a/src/libs/cal/cal-convert.c
+++ b/src/libs/cal/cal-convert.c
@@ -23,7 +23,7 @@
 #include <xpl.h>
 #include <bongocal.h>
 #include <bongocal-raw.h>
-#include <libical/ical.h>
+#include <ical-wrapper.h>
 #include <bongojson.h>
 #include <bongoutil.h>
 
diff --git a/src/libs/msgapi/msgcollector.c b/src/libs/msgapi/msgcollector.c
index 609c9e3..e79ea6b 100644
--- a/src/libs/msgapi/msgcollector.c
+++ b/src/libs/msgapi/msgcollector.c
@@ -35,7 +35,7 @@
 #include <nmlib.h>
 #include <bongocal-raw.h>
 
-#include <libical/ical.h>
+#include <ical-wrapper.h>
 
 #include <curl/curl.h>
 #include "msghttp.h"
diff --git a/src/libs/msgapi/msgdate.c b/src/libs/msgapi/msgdate.c
index 1f1ebe3..762d28a 100644
--- a/src/libs/msgapi/msgdate.c
+++ b/src/libs/msgapi/msgdate.c
@@ -28,7 +28,7 @@
 #include "msgapip.h"
 
 //#include <libical/icaltime.h>
-#include <libical/ical.h>
+#include <ical-wrapper.h>
 #include "bongoutil.h"
 
 #define LAST 5
diff --git a/src/libs/streamio/codec/rfc2445.h b/src/libs/streamio/codec/rfc2445.h
index 6ce5e09..7502c86 100644
--- a/src/libs/streamio/codec/rfc2445.h
+++ b/src/libs/streamio/codec/rfc2445.h
@@ -19,7 +19,7 @@
  * </Novell-copyright>
  ****************************************************************************/
 
-#include <libical.h>
+#include <ical-wrapper.h>
 #include <msgdate.h>
 #include <memmgr.h>