diff --git a/rxjava-contrib/rxjava-android/build.gradle b/rxjava-contrib/rxjava-android/build.gradle
index 7f50fa5858..d3bc3e2e8d 100644
--- a/rxjava-contrib/rxjava-android/build.gradle
+++ b/rxjava-contrib/rxjava-android/build.gradle
@@ -27,6 +27,7 @@ jar {
         instruction 'Bundle-Vendor', 'Netflix'
         instruction 'Bundle-DocURL', 'https://github.com/Netflix/RxJava'
         instruction 'Import-Package', '!org.junit,!junit.framework,!org.mockito.*,*'
+        instruction 'Fragment-Host', 'com.netflix.rxjava.core'
     }
 }
 
diff --git a/rxjava-contrib/rxjava-apache-http/build.gradle b/rxjava-contrib/rxjava-apache-http/build.gradle
index 81d150ccc3..c93f831374 100644
--- a/rxjava-contrib/rxjava-apache-http/build.gradle
+++ b/rxjava-contrib/rxjava-apache-http/build.gradle
@@ -16,5 +16,6 @@ jar {
         instruction 'Bundle-Vendor', 'Netflix'
         instruction 'Bundle-DocURL', 'https://github.com/Netflix/RxJava'
         instruction 'Import-Package', '!org.junit,!junit.framework,!org.mockito.*,*'
+        instruction 'Fragment-Host', 'com.netflix.rxjava.core'
     }
 }
diff --git a/rxjava-contrib/rxjava-async-util/build.gradle b/rxjava-contrib/rxjava-async-util/build.gradle
index 09d9aae655..7acd6a856d 100644
--- a/rxjava-contrib/rxjava-async-util/build.gradle
+++ b/rxjava-contrib/rxjava-async-util/build.gradle
@@ -16,5 +16,6 @@ jar {
         instruction 'Bundle-Vendor', 'Netflix'
         instruction 'Bundle-DocURL', 'https://github.com/Netflix/RxJava'
         instruction 'Import-Package', '!org.junit,!junit.framework,!org.mockito.*,*'
+        instruction 'Fragment-Host', 'com.netflix.rxjava.core'
     }
 }
diff --git a/rxjava-contrib/rxjava-computation-expressions/build.gradle b/rxjava-contrib/rxjava-computation-expressions/build.gradle
index 21bc395344..049cf185d4 100644
--- a/rxjava-contrib/rxjava-computation-expressions/build.gradle
+++ b/rxjava-contrib/rxjava-computation-expressions/build.gradle
@@ -16,5 +16,6 @@ jar {
         instruction 'Bundle-Vendor', 'Netflix'
         instruction 'Bundle-DocURL', 'https://github.com/Netflix/RxJava'
         instruction 'Import-Package', '!org.junit,!junit.framework,!org.mockito.*,*'
+        instruction 'Fragment-Host', 'com.netflix.rxjava.core'
     }
 }
diff --git a/rxjava-contrib/rxjava-string/build.gradle b/rxjava-contrib/rxjava-string/build.gradle
index 5c578ae04d..a3423a5173 100644
--- a/rxjava-contrib/rxjava-string/build.gradle
+++ b/rxjava-contrib/rxjava-string/build.gradle
@@ -26,5 +26,6 @@ jar {
         instruction 'Bundle-Vendor', 'Netflix'
         instruction 'Bundle-DocURL', 'https://github.com/Netflix/RxJava'
         instruction 'Import-Package', '!org.junit,!junit.framework,!org.mockito.*,*'
+        instruction 'Fragment-Host', 'com.netflix.rxjava.core'
     }
 }
diff --git a/rxjava-contrib/rxjava-swing/build.gradle b/rxjava-contrib/rxjava-swing/build.gradle
index ea863813a2..87c04c3b53 100644
--- a/rxjava-contrib/rxjava-swing/build.gradle
+++ b/rxjava-contrib/rxjava-swing/build.gradle
@@ -25,5 +25,6 @@ jar {
         instruction 'Bundle-Vendor', 'Netflix'
         instruction 'Bundle-DocURL', 'https://github.com/Netflix/RxJava'
         instruction 'Import-Package', '!org.junit,!junit.framework,!org.mockito.*,*'
+        instruction 'Fragment-Host', 'com.netflix.rxjava.core'
     }
 }