diff --git a/icu4c/source/tools/gentest/gentest.dsp b/icu4c/source/tools/gentest/gentest.dsp
index cd16afdd16..c5a6019182 100644
--- a/icu4c/source/tools/gentest/gentest.dsp
+++ b/icu4c/source/tools/gentest/gentest.dsp
@@ -185,6 +185,10 @@ SOURCE="$(InputPath)"
 
 SOURCE=.\gentest.c
 # End Source File
+# Begin Source File
+
+SOURCE=.\genres32.c
+# End Source File
 # End Group
 # Begin Group "Header Files"
 
diff --git a/icu4c/source/tools/gentest/gentest.vcproj b/icu4c/source/tools/gentest/gentest.vcproj
index e0514d1f22..6d7d64998c 100644
--- a/icu4c/source/tools/gentest/gentest.vcproj
+++ b/icu4c/source/tools/gentest/gentest.vcproj
@@ -137,6 +137,9 @@
 			<File
 				RelativePath=".\gentest.c">
 			</File>
+			<File
+				RelativePath=".\genres32.c">
+			</File>
 		</Filter>
 		<Filter
 			Name="Header Files"