Index: tests/OFValueTests.m
==================================================================
--- tests/OFValueTests.m
+++ tests/OFValueTests.m
@@ -164,11 +164,11 @@
 	TEST(@"-[isEqual:]",
 	    [[OFValue valueWithRectangle: rectangle]
 	    isEqual: [OFValue valueWithBytes: &rectangle
 				    objCType: @encode(of_rectangle_t)]] &&
 	    ![[OFValue valueWithBytes: "a"
-			     objCType: @encode(char)]
+			     objCType: @encode(signed char)]
 	    isEqual: [OFValue valueWithBytes: "a"
 				    objCType: @encode(unsigned char)]] &&
 	    ![[OFValue valueWithBytes: "a"
 			     objCType: @encode(char)]
 	    isEqual: [OFValue valueWithBytes: "b"