diff --git a/R/Aaaa.R b/R/Aaaa.R
index 40d61b16..d0c05268 100644
--- a/R/Aaaa.R
+++ b/R/Aaaa.R
@@ -82,8 +82,7 @@ block_list <- c("ENV", "PROB", "PARAM", "INIT",
                 "PREAMBLE", "PRED", "BLOCK", "TRANSIT", "YAML", "NMEXT", 
                 "INPUT")
 
-block_list_single <- c("MAIN", "SET", "GLOBAL", "PREAMBLE", "PRED", "TABLE", 
-                       "ODE", "PKMODEL", "PLUGIN")
+block_list_single <- c("MAIN", "SET", "GLOBAL", "PREAMBLE", "PRED", "PKMODEL")
 
 Reserved_cvar <- c("SOLVERTIME","table","ETA","EPS", "AMT", "CMT",
                    "ID", "TIME", "EVID","simeps", "self", "simeta",
diff --git a/R/modspec.R b/R/modspec.R
index 4aa1eb5a..91f0942a 100644
--- a/R/modspec.R
+++ b/R/modspec.R
@@ -157,15 +157,16 @@ check_sim_eta_eps_n <- function(x, spec) {
 }
 
 check_spec_contents <-  function(x, crump = TRUE, warn = TRUE, ...) {
-  invalid <- setdiff(x, block_list)
-  valid <- intersect(x, block_list)
-
-  check_duplicated <- intersect(block_list_single, x)
+  # Check for valid and invalid blocks
+  invalid <- base::setdiff(x, block_list)
+  valid <- base::intersect(x, block_list)
   
+  # Check for block duplicates where we only allow single 
+  check_duplicated <- base::intersect(x, block_list_single)
   dups <- c()
-  for(bl in check_duplicated) {
-    if(sum(bl == x) > 1) {
-      dups <- c(dups, bl)
+  for(block in check_duplicated) {
+    if(sum(block == x) > 1) {
+      dups <- c(dups, block)
     }
   }
   if(length(dups)) {
diff --git a/R/mread.R b/R/mread.R
index ac072ac4..db6db213 100644
--- a/R/mread.R
+++ b/R/mread.R
@@ -283,7 +283,12 @@ mread <- function(model, project = getOption("mrgsolve.project", getwd()),
   # Collect potential multiples
   subr  <- collect_subr(spec)
   table <- unlist(spec[names(spec)=="TABLE"], use.names = FALSE)
-  spec[["ODE"]] <- unlist(spec[names(spec)=="ODE"], use.names = FALSE)
+  if("ODE" %in% names(spec)) {
+    spec[["ODE"]] <- unlist(spec[names(spec)=="ODE"], use.names = FALSE)
+  }
+  if("PLUGIN" %in% names(spec)) {
+    spec[["PLUGIN"]] <- unlist(spec[names(spec)=="PLUGIN"], use.names = FALSE)
+  }
   
   # TODO: deprecate audit argument
   mread.env[["audit_dadt"]] <- 
@@ -431,7 +436,7 @@ mread <- function(model, project = getOption("mrgsolve.project", getwd()),
     x <- update_capture(x, .ren.chr(capture_vars))
     build$preclean <- TRUE
   }
-
+  
   # Check mod ----
   check_pkmodel(x, subr, spec)
   check_globals(mread.env[["move_global"]], Cmt(x))
@@ -555,7 +560,7 @@ mread <- function(model, project = getOption("mrgsolve.project", getwd()),
     from = temp_write,
     to = build[["compfile"]]
   )
-
+  
   if(!compile) return(x)
   
   if(ignore.stdout & !quiet) {