diff --git a/lslopt/lslbasefuncs.py b/lslopt/lslbasefuncs.py
index b784d3e..7cc9359 100644
--- a/lslopt/lslbasefuncs.py
+++ b/lslopt/lslbasefuncs.py
@@ -967,10 +967,7 @@ def llAbs(i):
     i = fi(i)
     if i != -2147483648:
         return abs(i)
-    if lslcommon.LSO:
-        return i
-    # Mono raises an OverflowException in this case.
-    raise ELSLCantCompute
+    return i
 
 def llAcos(f):
     f = ff(f)
diff --git a/unit_tests/regression.suite/non-computable.lsl b/unit_tests/regression.suite/non-computable.lsl
index 1c98bbc..caa1223 100644
--- a/unit_tests/regression.suite/non-computable.lsl
+++ b/unit_tests/regression.suite/non-computable.lsl
@@ -22,7 +22,6 @@ default
             , llGetDisplayName(TEXTURE_BLANK)
             , llGetEnv("estate_name")
             , llXorBase64Strings("++++", "?")
-            , llAbs(-2147483648)
             , llGetStatus(STATUS_DIE_AT_EDGE)
             , llGetStatus(STATUS_DIE_AT_NO_ENTRY)
             ]);
diff --git a/unit_tests/regression.suite/non-computable.out b/unit_tests/regression.suite/non-computable.out
index 6ab9d77..3c3f552 100644
--- a/unit_tests/regression.suite/non-computable.out
+++ b/unit_tests/regression.suite/non-computable.out
@@ -20,7 +20,6 @@ default
             , llGetDisplayName("5748decc-f629-461c-9a36-a35a221fe21f")
             , llGetEnv("estate_name")
             , llXorBase64Strings("++++", "?")
-            , llAbs(((integer)-2147483648))
             , llGetStatus(128)
             , llGetStatus(2048)
             ]);