diff --git a/src/libs/icu/Jamfile b/src/libs/icu/Jamfile
index bcc430d502..d3ab8c8cde 100644
--- a/src/libs/icu/Jamfile
+++ b/src/libs/icu/Jamfile
@@ -1,5 +1,7 @@
 SubDir HAIKU_TOP src libs icu ;
 
+HAIKU_ICU_API_VERSION = 4.2 ;
+
 SubInclude HAIKU_TOP src libs icu source common ;
 SubInclude HAIKU_TOP src libs icu source data ;
 SubInclude HAIKU_TOP src libs icu source i18n ;
@@ -14,4 +16,4 @@ Depends ICU_Libs
 	libicu-i18n.so
 	libicu-toolutil.so
 	;
- 
+
diff --git a/src/libs/icu/source/common/Jamfile b/src/libs/icu/source/common/Jamfile
index e79a10a006..181852c65f 100644
--- a/src/libs/icu/source/common/Jamfile
+++ b/src/libs/icu/source/common/Jamfile
@@ -12,7 +12,8 @@ SubDirC++Flags
 	-DU_COMMON_IMPLEMENTATION -Wno-sign-compare -Wno-parentheses
 	;
 
-SharedLibrary libicu-common.so :	
+SharedLibrary libicu-common.so
+	:
 	bmpset.cpp
 	brkeng.cpp
 	brkiter.cpp
@@ -156,4 +157,6 @@ SharedLibrary libicu-common.so :
 	wintz.c
 	:
 	<stub>libicu-data.so $(TARGET_LIBSUPC++)
+	:
+	$(HAIKU_ICU_API_VERSION)
 	;
diff --git a/src/libs/icu/source/data/Jamfile b/src/libs/icu/source/data/Jamfile
index 13e2ed9f7e..9c20d53fd4 100644
--- a/src/libs/icu/source/data/Jamfile
+++ b/src/libs/icu/source/data/Jamfile
@@ -183,4 +183,5 @@ GeneratePackageInclude icupkg.inc ;
 
 local icuDataAsmSource = [ FGristFiles $(ICU_DATA_VERSION)_dat.s ] ;
 GeneratePackageDataAsm $(icuDataAsmSource) : icudata.lst ;
-SharedLibrary libicu-data.so : $(icuDataAsmSource) ;
+SharedLibrary libicu-data.so
+	: $(icuDataAsmSource) : : $(HAIKU_ICU_API_VERSION) ;
diff --git a/src/libs/icu/source/i18n/Jamfile b/src/libs/icu/source/i18n/Jamfile
index bd9b0c05ac..556430b17a 100644
--- a/src/libs/icu/source/i18n/Jamfile
+++ b/src/libs/icu/source/i18n/Jamfile
@@ -12,7 +12,8 @@ SubDirC++Flags
 	-DU_I18N_IMPLEMENTATION -Wno-sign-compare -Wno-parentheses
 	;
 
-SharedLibrary libicu-i18n.so :	
+SharedLibrary libicu-i18n.so
+	:
 	anytrans.cpp
 	astro.cpp
 	basictz.cpp
@@ -153,4 +154,6 @@ SharedLibrary libicu-i18n.so :
 	zstrfmt.cpp
 	:
 	libicu-common.so $(TARGET_LIBSUPC++)
+	:
+	$(HAIKU_ICU_API_VERSION)
 	;
diff --git a/src/libs/icu/source/stubdata/Jamfile b/src/libs/icu/source/stubdata/Jamfile
index ddbd8417d5..b0322d794a 100644
--- a/src/libs/icu/source/stubdata/Jamfile
+++ b/src/libs/icu/source/stubdata/Jamfile
@@ -4,6 +4,5 @@ UseLibraryHeaders icu ;
 
 SubDirHdrs [ FDirName $(HAIKU_TOP) src libs icu source common ] ;
 
-SharedLibrary <stub>libicu-data.so :	
-	stubdata.c
-	;
+SharedLibrary <stub>libicu-data.so
+	: stubdata.c : : $(HAIKU_ICU_API_VERSION) ;