diff --git a/polymer/eduke32/source/gamedef.c b/polymer/eduke32/source/gamedef.c
index b14807a11..3ff24faac 100644
--- a/polymer/eduke32/source/gamedef.c
+++ b/polymer/eduke32/source/gamedef.c
@@ -2057,7 +2057,7 @@ static int32_t C_GetNextValue(int32_t type)
 
     BITPTR_CLEAR(g_scriptPtr-apScript);
 
-    if (tolower(textptr[1])=='x')
+    if (textptr[0] == '0' && tolower(textptr[1])=='x')
         *g_scriptPtr = parse_hex_constant(textptr+2);
     else
         *g_scriptPtr = parse_decimal_number();
diff --git a/polymer/eduke32/source/m32def.c b/polymer/eduke32/source/m32def.c
index 42cfe2fee..a0cc49ff4 100644
--- a/polymer/eduke32/source/m32def.c
+++ b/polymer/eduke32/source/m32def.c
@@ -943,7 +943,7 @@ static int32_t GetGamearrayID(const char *szGameLabel, int32_t searchlocals)
 
 static int32_t parse_integer_literal(int32_t *num)
 {
-    if (tolower(textptr[1])=='x')
+    if (textptr[0] == '0' && tolower(textptr[1])=='x')
         sscanf(textptr+2, "%" SCNx32, num);
     else
     {