diff --git a/modules/rostests/apitests/kernel32/classtest.manifest b/modules/rostests/apitests/kernel32/classtest.manifest
index 485d826cce7..902c194a95d 100644
--- a/modules/rostests/apitests/kernel32/classtest.manifest
+++ b/modules/rostests/apitests/kernel32/classtest.manifest
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
-  <assemblyIdentity type="win32" name="ReactOS-TestLib" version="2.2.2.2" processorArchitecture="*" publicKeyToken="6595b64144ccf1df"/>
+  <assemblyIdentity type="win32" name="ReactOS-TestLib" version="2.2.2.2" processorArchitecture="x86" publicKeyToken="6595b64144ccf1df"/>
   <file name="testlib.dll">
     <windowClass>Button</windowClass>
     <windowClass>ButtonListBox</windowClass>
diff --git a/modules/rostests/apitests/kernel32/classtest2.manifest b/modules/rostests/apitests/kernel32/classtest2.manifest
index ff763ffb8f0..dc6dcd1ed12 100644
--- a/modules/rostests/apitests/kernel32/classtest2.manifest
+++ b/modules/rostests/apitests/kernel32/classtest2.manifest
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
-  <assemblyIdentity type="win32" name="ReactOS-TestLib" version="1.1.1.1" processorArchitecture="*" publicKeyToken="6595b64144ccf1df"/>
+  <assemblyIdentity type="win32" name="ReactOS-TestLib" version="1.1.1.1" processorArchitecture="x86" publicKeyToken="6595b64144ccf1df"/>
   <file name="testlib.dll">
     <windowClass>ButtonListBox</windowClass>
     <windowClass>ComboBoxEx32</windowClass>
diff --git a/modules/rostests/apitests/kernel32/dep1.manifest b/modules/rostests/apitests/kernel32/dep1.manifest
index 3f1edc8397d..64ffd898bc9 100644
--- a/modules/rostests/apitests/kernel32/dep1.manifest
+++ b/modules/rostests/apitests/kernel32/dep1.manifest
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
-  <assemblyIdentity type="win32" name="dep1" version="0.4.4.0" processorArchitecture="*" />
+  <assemblyIdentity type="win32" name="dep1" version="0.4.4.0" processorArchitecture="x86" />
   <file name="dep1.dll"/>
 </assembly>
diff --git a/modules/rostests/apitests/kernel32/deptest.manifest b/modules/rostests/apitests/kernel32/deptest.manifest
index 8471929f6c2..567134f96ab 100644
--- a/modules/rostests/apitests/kernel32/deptest.manifest
+++ b/modules/rostests/apitests/kernel32/deptest.manifest
@@ -7,7 +7,7 @@
                   type="win32"
                   name="dep1"
                   version="0.4.4.0"
-                  processorArchitecture="*"
+                  processorArchitecture="x86"
                   />
           </dependentAssembly>
   </dependency>
diff --git a/modules/rostests/apitests/kernel32/redirptest/redir2dep.manifest b/modules/rostests/apitests/kernel32/redirptest/redir2dep.manifest
index c19b4531410..fcc136f2f05 100644
--- a/modules/rostests/apitests/kernel32/redirptest/redir2dep.manifest
+++ b/modules/rostests/apitests/kernel32/redirptest/redir2dep.manifest
@@ -6,7 +6,7 @@
                   type="win32"
                   name="redirtest2"
                   version="0.2.2.2"
-                  processorArchitecture="*"
+                  processorArchitecture="x86"
                   />
           </dependentAssembly>
   </dependency>
diff --git a/modules/rostests/apitests/kernel32/redirptest/redirtest2.manifest b/modules/rostests/apitests/kernel32/redirptest/redirtest2.manifest
index f2cea040b5e..21ae9497191 100644
--- a/modules/rostests/apitests/kernel32/redirptest/redirtest2.manifest
+++ b/modules/rostests/apitests/kernel32/redirptest/redirtest2.manifest
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
-  <assemblyIdentity type="win32" name="redirtest2" version="0.2.2.2" processorArchitecture="*" />
+  <assemblyIdentity type="win32" name="redirtest2" version="0.2.2.2" processorArchitecture="x86" />
   <file name="kernel32test_versioned.dll"/>
 </assembly>
  
\ No newline at end of file