diff --git a/panda/src/pipeline/conditionVarDebug.h b/panda/src/pipeline/conditionVarDebug.h
index f84034e1b8..8a5294b015 100644
--- a/panda/src/pipeline/conditionVarDebug.h
+++ b/panda/src/pipeline/conditionVarDebug.h
@@ -44,8 +44,8 @@ private:
 PUBLISHED:
   INLINE MutexDebug &get_mutex() const;
 
-  void wait();
-  void wait(double timeout);
+  BLOCKING void wait();
+  BLOCKING void wait(double timeout);
   void notify();
   virtual void output(ostream &out) const;
 
diff --git a/panda/src/pipeline/conditionVarFullDebug.h b/panda/src/pipeline/conditionVarFullDebug.h
index dc9f5bed97..70518cf0fe 100644
--- a/panda/src/pipeline/conditionVarFullDebug.h
+++ b/panda/src/pipeline/conditionVarFullDebug.h
@@ -44,8 +44,8 @@ private:
 PUBLISHED:
   INLINE MutexDebug &get_mutex() const;
 
-  void wait();
-  void wait(double timeout);
+  BLOCKING void wait();
+  BLOCKING void wait(double timeout);
   void notify();
   void notify_all();
   virtual void output(ostream &out) const;
diff --git a/panda/src/pipeline/conditionVarFullDirect.h b/panda/src/pipeline/conditionVarFullDirect.h
index cc421e2413..7bf3a892a1 100644
--- a/panda/src/pipeline/conditionVarFullDirect.h
+++ b/panda/src/pipeline/conditionVarFullDirect.h
@@ -44,8 +44,8 @@ private:
 PUBLISHED:
   INLINE MutexDirect &get_mutex() const;
 
-  INLINE void wait();
-  INLINE void wait(double timeout);
+  BLOCKING INLINE void wait();
+  BLOCKING INLINE void wait(double timeout);
   INLINE void notify();
   INLINE void notify_all();
   void output(ostream &out) const;