diff --git a/src/Decoder.c b/src/Decoder.c
index 757dd34..7ba2580 100644
--- a/src/Decoder.c
+++ b/src/Decoder.c
@@ -632,7 +632,7 @@ static ZydisStatus ZydisReadImmediate(ZydisDecoderContext* context, ZydisInstruc
     ZYDIS_ASSERT(context);
     ZYDIS_ASSERT(info);
     ZYDIS_ASSERT((id == 0) || (id == 1));
-    ZYDIS_ASSERT(isSigned || ~isRelative);
+    ZYDIS_ASSERT(isSigned || !isRelative);
     ZYDIS_ASSERT(info->details.imm[id].dataSize == 0);
 
     info->details.imm[id].dataSize = size;
diff --git a/src/InstructionTable.c b/src/InstructionTable.c
index 2206c86..08090e8 100644
--- a/src/InstructionTable.c
+++ b/src/InstructionTable.c
@@ -508,7 +508,7 @@ void ZydisGetElementInfo(ZydisInternalElementType element, ZydisElementType* typ
         { ZYDIS_ELEMENT_TYPE_LONGBCD  ,  80 }
     };
 
-    ZYDIS_ASSERT((element >= 0) && (element < ZYDIS_ARRAY_SIZE(lookup)));
+    ZYDIS_ASSERT(element < ZYDIS_ARRAY_SIZE(lookup));
 
     *type = lookup[element].type;
     *size = lookup[element].size;